Error 599 что это

Коды ответа HTTP

Код ответа (состояния) HTTP показывает, был ли успешно выполнен определённый HTTP запрос. Коды сгруппированы в 5 классов:

1. Информационные 100 — 199
2. Успешные 200 — 299
3. Перенаправления 300 — 399
4. Клиентские ошибки 400 — 499
5. Серверные ошибки 500 — 599

Коды состояния определены в 10-ой секции RFC 2616. Обновленную спецификацию можно найти в RFC 7231 .

Если вы получили код ответа (состояния), которого нет в данном списке, в таком случае он является не стандартизированным кодом ответа (состояния), вероятней всего он кастомный сервера.

Следующая таблица содержит список всех кодов и их значения:

«Множественный выбор». Этот код ответа присылается, когда запрос имеет более чем один из возможных ответов. И User-agent или пользователь должен выбрать один из ответов. Не существует стандартизированного способа выбора одного из полученных ответов.

«Перемещён на постоянной основе». Этот код ответа значит, что URI запрашиваемого ресурса был изменён. Возможно, новый URI будет предоставлен в ответе.

«Найдено». Этот код ответа значит, что запрошенный ресурс временно изменён. Новые изменения в URI могут быть доступны в будущем. Таким образом, этот URI, должен быть использован клиентом в будущих запросах.

«Перенаправление на постоянной основе». Это означает, что ресурс теперь постоянно находится в другом URI, указанном в заголовке Location: HTTP Response. Данный код ответа имеет ту же семантику, что и код ответа 301 Moved Permanently , за исключением того, что агент пользователя не должен изменять используемый метод HTTP: если POST использовался в первом запросе, POST должен использоваться и во втором запросе.

Этот ответ отсылается, когда запрос конфликтует с текущим состоянием сервера.

Этот ответ отсылается, когда запрашиваемый контент удалён с сервера.

Запрос отклонён, потому что сервер требует указание заголовка Content-Length , но он не указан.

Размер запроса превышает лимит, объявленный сервером. Сервер может закрыть соединение, вернув заголовок Retry-After

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Ошибка 599 на сайте — что бы это значило?

HTTP ERROR 599 — что означает и как исправить?

Код 599 означает,что произошла ошибка со стороны сервера.Обычно это связано с вирусами или вредоносными ПО,или же повреждение реестра из-за установки(удаления) какой-либо программы.В таких случаях Windows медленно открывается,а программы вылетают.Проверьте компьютер на вирусы,очистите диск от временных файлов,установите все обновления,можно перезагрузить.Если система не справится-переустановка Windows.

Согласно классификации ошибок HTTP, 599 ошибка — одна из разновидностей внутренних ошибок сервера, так как находится в диапазоне от 500 до 599.

На самом деле владелец сайта, при условии если сайт находится на стороннем хостинге, мало что может сделать, следует обратиться к администрации хостинга и указать на ошибку.

Если же сервер принадлежит владельцу интернет-ресурса, причину нужно искать в пропускной способности — устранять причину самому или привлечь системногоадминистра­ тора.

Я так понимаю, что это ю-туб. Делаете интересные ролики, набираете подписчиков, размещаете рекламу. Рекорды там вообще в десятках миллионов долларов в год. Но и меньше наверное можно заработать. Главное интересный и востребованный контент формировать.

Mail.ru Group хочет поживиться денежками на рынке, который фактически создал BlaBlaCar. Вам нравится то что делает мейл.ру? (одноклассники, мой мир и прочее. ) Если да — то и beepcar тоже понравится. Но на BlaBlaCar людей пока больше, на долго ли — не понятно, у mail.ru ресурсов и денег очень много.

В других социальных сетях ( и во ВКонтакте, и в Фейсбуке) такая функция предусмотрена, а в «Одноклассниках» почему-то её нет. Оченьь неудобно, приходится листать, аж рука устаёт. Открывается диалог по тридцать предыдущих сообщений, если под списком диалогов кликните на слова «Предыдущие сообщения». И так постепенно доберётесь до начала.

Хорошие компьютеры покупают не с сайтов, а придя в магазин, где можно все общупать и поисследовать. Иначе рискуете нарваться на такую покупку, от которой Вам потом станет тошно. Никогда не покупайте компьютеры онлайн, лучше пригласите друга, разбирающегося в компах, или, в крайнем случае сделайте заказ в компьютерном магазине, но вы ДОЛЖНЫ КОМПЬЮТЕР ВИДЕТЬ и знать о нем все.

Интернет решает все, только навыки по изложению информации, умения ее правильно оцифровать не достаточно у большинства пользователей интернета. Как и в любой нише нужны специалисты. Я вообще думаю, что к созданию сайта надо подходить командой. Сайт это проект и очень важно, что бы вид и контент были гармоничны, востребованы. Шли в ногу со временем, обучали, а так же давали положительный толчок в развитии ай-ти технологий не только для избранных, которые заплатят огромные деньги, а были доступны для широкого круга пользователей.

Если говорить о своих личных проблемах, то хочу с помощью сайта создать единую систему управления доходами и расходами в зависимости от затраченного времени на единицу индивидуальной консультации и изложить эту зависимость в удобной форме не сайте.

Если хотите, зайдите на сайт ekokonsultant точка ру. На этой площадке пытаюсь решить такую задачу, где экология (такие ресурсы как земля, вода, недра и право на них) и экономика (сборы, налоги, штрафы) должны быть завязаны в единую систему и удобны для восприятия и оценки.

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Where did the status code 599 come from, and where is it used? #22

The status code 599 is non-standard, it doesn’t exist in any RFC, but it appears to be quite widely used, it’s the 10th most popular status code on the website. The description I originally used came from wikipedia, now the wikipedia page has been updated with circular references, and my google searches aren’t returning much useful information on where the code came from, or who’s using it. but it must be someone!

Any research / input here is greatly appreciated.

The text was updated successfully, but these errors were encountered:

Wikipedia source in October 2015 was https://github.com/serrynaimo/http-status-singlish#599-network-connect-timeout-error-unknown although that might also be circular as it was only [citation needed] in November 2014.

In fact, there is apparently a history of circular references for 599. Here’s another from 2011: https://www.flickr.com/photos/girliemac/6509400929/in/set-72157628409467125/

Here’s the Tornado server in 2009: tornadoweb/tornado@33c3f8d History beyond that is lost to us as it belongs in the closed-source history of Tornado, which we don’t have (access to).

HTTP error integer error code, e.g. 404. Error code 599 is used when no HTTP response was received, e.g. for a timeout.

That itself may be a reason it’s seen often in error aggregation services, as they report statuses seen from servers?

I have found no further reference to an HTTP error 599 before 2009 in google and mailing list archives.

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[100% fixed] Error 599 invalid origin configuration-HTTP 599: Stream close

 HTTP 599: Timeout, http error 599,http 599: unknown,Http status 599 axl,Error 599 invalid origin configuration,HTTP 599: Stream close,HTTP errors list, HTTP error 599 VMware Horizon client, HTTP error 599 owncloud

According to the Response for comments (RFC), HTTP error codes 500-599 indicate that the server has encountered a drag whereas activity your request and is, therefore, unable to finish that request.

In this category of codes, error code 599 is one amongst the foremost wide used on websites. 

Nonetheless, it’s not expressly outlined in any RFC.

What will a Server affiliation (connection) Timeout Mean?(599) 

The ‘server affiliation (connection)timeout’ error happens to everyone exploitation the web. It means there’s a drag within the communication between the server and a tool. So, if the server takes too long to reply to an information request, a timeout error seems.

The timeout error is meant to stop a tool from AN endless expect the server to reply.

✔️Server overload: When a server is handling large traffic, it takes a extended time to reply to new information requests. If this point is longer than that set by your browser, then you’ll get the timeout error on every occasion to access the web site.

This is largely the case for websites with plain texts and straightforward pictures.

✔️Inexistent server: Another reason for obtaining this error is probably you’re attempting to access a server that doesn’t exist. this might be a results of finding out the incorrect address. It may additionally happen if the server has been affected offline.

✔️Error within the network hardware: Issues along with your network hardware may even be the rationale for this error. Your firewall or the router port settings might be block your information requests from going away the pc and reaching the server.

✔️Network infrastructure error: Once your device sends an information request, there area unit many ‘checkpoints’ that it’s to travel through before reaching the servers. So, if you’re employing a busy network, your request won’t get through to the server. for example, if you’re on a wi-fi network with several outward requests from alternative devices, there’s a high likelihood that your request are born.

✔️Inactivity on the client-side: Every server is meant with a group quantity of your time once that it will drop the affiliation, if the consumer becomes inactive. Usually, this is often a few of hours, however once this point is exceeded, this error message can crop up.

✔️Data request error: When you access a web site, the server and therefore the consumer applications ought to exchange information requests simply. If the server is unable to browse the requested information, it becomes unable to send a reply, and so, the error happens.

Nonetheless, the rationale for this error may additionally be: exploitation AN obsolete browser, attempting to access blacklisted web sites or exploitation faulty website extensions.

Where did the standing code 599 come back from, and wherever is it used?

As earlier mentioned, HTTP error 599 doesn’t seem on the RFC standing explanations. It doesn’t belong to the HTTP commonplace.The error is believed to possess 1st surfaced in 2009 from the Tornado server, however this data is nonetheless to be verified.

However, many websites area unit exploitation it with Microsoft because the hottest users. it’s used once none of the other HTTP responses is received, e.g. a timeout.

How to Fix Network error: affiliation(connection) regular out putty?-599

The ‘Network error: affiliation regular out’ error on PuTTY is comparatively common among its users.It happens once a server fails to attach to the consumer network; so, it can’t send a response to the affiliation of the PuTTY.

Here’s a summing up on a way to fix this error.

Step 1: put together your server settings

If you’ve recently modified your information science address, check to verify that your information science address and your port variety area unit correct. you’ll be able to additionally check the hostname and make sure that it’s correct. 

Confirm that your information science address isn’t blacklisted on the servers, and if it’s, raise the admin to form AN exception.

Step 2: UNIX operating system error

This error can also be created by UNIX operating system because it tries to send information through the network. once UNIX operating system is causation information, the affiliation to the server is lost. So, if you are attempting to faucet things on PuTTY once the Network is down, the error happens.

Step 3: Check your Firewall and Antivirus

In most cases, your firewall and antivirus might be proscribing the PuTTY affiliation to the server. To resolve this, first, open your firewall and add the information science address you wish to open.

You may additionally like better to quickly disable your firewall and antivirus and expect many minutes, (3-5) then attempt to log in once more. If this works, you’ll ought to tweak the antivirus settings to make sure that a similar error doesn’t happen once more in future.

Step 4: amendment (Change) your port

The error may additionally occur as a result of your network proxy is police work your port. So, amendment from your port from the default SSH port twenty two to the HTTPS port 443. To do this, visit etc/ ssh / sshd _config, then amendment the port.

Furthermore, if you’re employing a server that was got wind of by somebody else, build a degree to contact them and inquire. they could have modified the port to suit their convenience.

Step 5: ensure your PuTTY settings

It’s potential that you’re obtaining this error as a result of you’re exploitation the incorrect settings. If your settings area unit okay, strive restarting the SSH server and boot your servers.

Step 6: guarantee your DNS is pointed to the correct server

When operating with a replacement server, it’s extremely doubtless that this error is caused by setting the incorrect DNS configurations on the server. make sure that once putting in a server, you modify the server name to the proper name. in addition, ensure that your DNS is about to the information science address of your location.

There area unit many alternative ways in which to resolve this “Network error: affiliation regular out putty” error. However, the steps to resolve this error differs between devices, and so, these steps might not work for all the devices.

• Blog
• ERROR 599

(5 votes, average: 4.00 out of 5)

• July 22, 2022
• by Admin

According to the Response for comments (RFC), HTTP error codes 500-599 indicate that the server has encountered a problem while performing your request and is, therefore, unable to complete that request.

In this class of codes, error code 599 is one of the most widely used on websites. Microsoft HTTP proxies use this status code when signaling a network connect timeout behind the proxy to a client in front of the proxy.

Nonetheless, it’s not explicitly defined in any RFC.

What Does a Server Connection Timeout Mean?

The ‘server connection timeout’ error happens to everybody using the internet. It Means That there’s a problem in the communication between the server and a device. So, if the server takes too long to respond to a data request, a timeout error appears.

The timeout error is designed to prevent a device from an endless wait for the server to reply.

There are many reasons why the connection timeout occurs. Some of the most common reasons include:

Server overload: When a server is dealing with huge traffic, it takes a longer time to respond to new data requests. If this time is longer than that set by your browser, then you’ll get the timeout error each time to access the website.

This is mostly the case for websites with plain texts and simple images.

Inexistent server: Another reason for getting this error is maybe you’re trying to access a server that doesn’t exist. This could be a result of searching for the wrong address. It could also happen if the server has been moved offline.

Error in the network hardware: Issues with your network hardware could also be the reason for this error. Your firewall or the router port settings could be blocking your data requests from leaving the computer and reaching the server.

Network infrastructure error: Once your device sends a data request, there are a few ‘checkpoints’ that it has to go through before reaching the servers. So, if you’re using a busy network, your request might not get through to the server. For instance, if you’re on a wi-fi network with many outbound requests from other devices, there’s a high chance that your request will be dropped.

Inactivity on the client-side: Every server is designed with a set amount of time after which it can drop the connection, if the client becomes inactive. Usually, this is a couple of hours, but when this time is exceeded, this error message will pop up.

Data request error: When you access a website, the server and the client applications need to exchange data requests easily. If the server is unable to read the requested data, it becomes unable to send a reply, and so, the error occurs.

Nonetheless, the reason for this error could also be: using an outdated browser, trying to access blacklisted websites or using faulty website extensions.

Where did the status code 599 come from, and where is it used?

As earlier mentioned, HTTP error 599 doesn’t appear on the RFC status explanations. It doesn’t belong to the HTTP standard.The error is believed to have first surfaced in 2009 from the Tornado server, but this information is yet to be verified.

However, several websites are using it with Microsoft as the most popular users. It is used when none of the other HTTP responses is received, e.g. a timeout.

How to Fix Network error: connection timed out putty?

The ‘Network error: connection timed out’ error on PuTTY is relatively common among its users.It occurs when a server fails to connect to the client network; and so, it can’t send a response to the connection of the PuTTY.

Here’s a rundown on how to fix this error.

Step 1: Configure your server settings

If you’ve recently changed your IP address, check to confirm that your IP address and your port number are correct. You can also check the hostname and ensure that it’s correct. If it doesn’t work, contact your system or network administrator.

Confirm that your IP address isn’t blacklisted on the servers, and if it is, ask the admin to make an exception.

Step 2: UNIX error

This error may also be created by Unix as it tries to send data through the network. When Unix is sending data, the connection to the server is lost. So, if you try to tap things on PuTTY when the Network is down, the error occurs.

Step 3: Check your Firewall and Antivirus

In most cases, your firewall and antivirus could be restricting the PuTTY connection to the server. To resolve this, first, open your firewall and add the IP address you want to open.

You may also opt to temporarily disable your firewall and antivirus and wait for a few minutes, (3-5) then try to log in again. If this works, you’ll need to tweak the antivirus settings to ensure that the same error doesn’t happen again in future.

Step 4: Change your port

The error could also occur because your network proxy is detecting your port. So, change from your port from the default SSH port 22 to the HTTPS port 443. To do this, go to etc/ ssh / sshd _config, then change the port.

Furthermore, if you are using a server that was set up by someone else, make a point to contact them and inquire. They might have changed the port to suit their convenience.

Step 5: Confirm your PuTTY settings

It’s possible that you’re getting this error because you’re using the wrong settings. If your settings are okay, try restarting the SSH server and reboot your servers.

Step 6: Ensure your DNS is pointed to the right server

When working with a new server, it’s highly likely that this error is caused by setting the wrong DNS configurations on the server. Ensure that after installing a server, you change the server name to the correct name. Additionally, confirm that your DNS is set to the IP address of your location.

There are several other ways to resolve this “Network error: Connection timed out putty” error. However, the steps to resolve this error differs between devices, and so, these steps may not work for all the devices.

The Connection timed-out error when browsing in Windows 10

For Windows 10 users, the ‘connection timed-out’ error is by far the most common error you can experience. It’s mostly caused by complications on the server, but at times, it’s a result of unintentional user errors.

While this error can occur when using different features of the OS, most users have reported it when using Wi-fi and Chrome/Firefox browsers. Other variations of the error that users experience include:

• Connection timed out/lost – Because of poor internet connection.
• Connection timeout TCP – Because of faulty TCP configuration.
• Connection request timed out – Because of incorrect network settings.
• Connection attempt timed out – Because of network issues.
• Connection server timed out – Because of slow server response time.
• The connection has been reset/ closed by the server – Because the server closed your connection or incorrect configuration.

There are many solutions to this error, mainly because it can be triggered by changing different settings. So, you have to be careful when changing your settings on Windows.

Some of the common solutions to resolve this include: Renewing your DNS and Ip address, changing your browser time-out settings, resetting your browser to the default settings, reset your router and updating your browser and network adapters.

The error can also be a result of a broken extension on your browser. So, remove the extension or repair it.

How to resolve a web “Connection timed” error

Connection time-out occurs whenever a browser doesn’t receive a response from the server. This usually takes 30-60 seconds, depending on your browser settings. So, if a server responds after two minutes, and your browser is set at a minute, this error occurs.

If you keep getting this error on your site, here’s how to fix it for good.

Break down your code

A good reason why you keep getting a connection timeout error is; you might be sending large chunks of data to the server. So, it takes a lot of time for the server to respond and hence the error. To fix this, you need to break down your code to send in smaller data.

For instance, instead of inserting all your records to a database at one time, insert a few records then send a response to the browser.

Ensure you have the correct web address

Your site could also experience this code status 404, or at times, the 599 code error, because you’re trying to load files to a non-existent location. This dramatically slows down your site and may cause a timeout error.

It becomes worse if your site loads data from external sources, e.g. PayPal, Skrill, Google Analytics. If these websites experience a slow response time, they’ll affect your website, causing loading failures on some of your pages.

Run your scripts in the background

If your site’s PHP scripts take a longer time to run, consider running the scripts in the background. The script can use a database or file to write its status.

You may then use a tool like AJAX to check the script’s status and add a loading bar, which can be removed once the script is complete.You can also avoid the load balancer’s timeout by using PHP or Perl in place of HTTP.

Keep in mind that your code has to find a way to send a response back to the client browser on time.

Lastly, check on the memory space assigned to the plugins on your site. Plugins like WordPress, and jQuery UI, utilize a lot of resources and so, need to be allocated adequate memory size. Otherwise, they’ll slow down the site and result in the connection timed out error.

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From Wikipedia, the free encyclopedia

This is a list of Hypertext Transfer Protocol (HTTP) response status codes. Status codes are issued by a server in response to a client’s request made to the server. It includes codes from IETF Request for Comments (RFCs), other specifications, and some additional codes used in some common applications of the HTTP. The first digit of the status code specifies one of five standard classes of responses. The optional message phrases shown are typical, but any human-readable alternative may be provided, or none at all.

Unless otherwise stated, the status code is part of the HTTP standard (RFC 9110).

The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes.^[1]

All HTTP response status codes are separated into five classes or categories. The first digit of the status code defines the class of response, while the last two digits do not have any classifying or categorization role. There are five classes defined by the standard:

• 1xx informational response – the request was received, continuing process
• 2xx successful – the request was successfully received, understood, and accepted
• 3xx redirection – further action needs to be taken in order to complete the request
• 4xx client error – the request contains bad syntax or cannot be fulfilled
• 5xx server error – the server failed to fulfil an apparently valid request

1xx informational response

An informational response indicates that the request was received and understood. It is issued on a provisional basis while request processing continues. It alerts the client to wait for a final response. The message consists only of the status line and optional header fields, and is terminated by an empty line. As the HTTP/1.0 standard did not define any 1xx status codes, servers must not^{[note 1]} send a 1xx response to an HTTP/1.0 compliant client except under experimental conditions.

100 Continue

The server has received the request headers and the client should proceed to send the request body (in the case of a request for which a body needs to be sent; for example, a POST request). Sending a large request body to a server after a request has been rejected for inappropriate headers would be inefficient. To have a server check the request’s headers, a client must send Expect: 100-continue as a header in its initial request and receive a 100 Continue status code in response before sending the body. If the client receives an error code such as 403 (Forbidden) or 405 (Method Not Allowed) then it should not send the request’s body. The response 417 Expectation Failed indicates that the request should be repeated without the Expect header as it indicates that the server does not support expectations (this is the case, for example, of HTTP/1.0 servers).^[2]

101 Switching Protocols

The requester has asked the server to switch protocols and the server has agreed to do so.

102 Processing (WebDAV; RFC 2518)

A WebDAV request may contain many sub-requests involving file operations, requiring a long time to complete the request. This code indicates that the server has received and is processing the request, but no response is available yet.^[3] This prevents the client from timing out and assuming the request was lost.

103 Early Hints (RFC 8297)

Used to return some response headers before final HTTP message.^[4]

2xx success

This class of status codes indicates the action requested by the client was received, understood, and accepted.^[1]

200 OK

Standard response for successful HTTP requests. The actual response will depend on the request method used. In a GET request, the response will contain an entity corresponding to the requested resource. In a POST request, the response will contain an entity describing or containing the result of the action.

201 Created

The request has been fulfilled, resulting in the creation of a new resource.^[5]

202 Accepted

The request has been accepted for processing, but the processing has not been completed. The request might or might not be eventually acted upon, and may be disallowed when processing occurs.

203 Non-Authoritative Information (since HTTP/1.1)

The server is a transforming proxy (e.g. a Web accelerator) that received a 200 OK from its origin, but is returning a modified version of the origin’s response.^[6][7]

204 No Content

The server successfully processed the request, and is not returning any content.

205 Reset Content

The server successfully processed the request, asks that the requester reset its document view, and is not returning any content.

206 Partial Content

The server is delivering only part of the resource (byte serving) due to a range header sent by the client. The range header is used by HTTP clients to enable resuming of interrupted downloads, or split a download into multiple simultaneous streams.

207 Multi-Status (WebDAV; RFC 4918)

The message body that follows is by default an XML message and can contain a number of separate response codes, depending on how many sub-requests were made.^[8]

208 Already Reported (WebDAV; RFC 5842)

The members of a DAV binding have already been enumerated in a preceding part of the (multistatus) response, and are not being included again.

226 IM Used (RFC 3229)

The server has fulfilled a request for the resource, and the response is a representation of the result of one or more instance-manipulations applied to the current instance.^[9]

3xx redirection

This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection.^[1]

A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD. A user agent may automatically redirect a request. A user agent should detect and intervene to prevent cyclical redirects.^[10]

300 Multiple Choices

Indicates multiple options for the resource from which the client may choose (via agent-driven content negotiation). For example, this code could be used to present multiple video format options, to list files with different filename extensions, or to suggest word-sense disambiguation.

301 Moved Permanently

This and all future requests should be directed to the given URI.

302 Found (Previously «Moved temporarily»)

Tells the client to look at (browse to) another URL. The HTTP/1.0 specification (RFC 1945) required the client to perform a temporary redirect with the same method (the original describing phrase was «Moved Temporarily»),^[11] but popular browsers implemented 302 redirects by changing the method to GET. Therefore, HTTP/1.1 added status codes 303 and 307 to distinguish between the two behaviours.^[10]

303 See Other (since HTTP/1.1)

The response to the request can be found under another URI using the GET method. When received in response to a POST (or PUT/DELETE), the client should presume that the server has received the data and should issue a new GET request to the given URI.

304 Not Modified

Indicates that the resource has not been modified since the version specified by the request headers If-Modified-Since or If-None-Match. In such case, there is no need to retransmit the resource since the client still has a previously-downloaded copy.

305 Use Proxy (since HTTP/1.1)

The requested resource is available only through a proxy, the address for which is provided in the response. For security reasons, many HTTP clients (such as Mozilla Firefox and Internet Explorer) do not obey this status code.

306 Switch Proxy

No longer used. Originally meant «Subsequent requests should use the specified proxy.»

307 Temporary Redirect (since HTTP/1.1)

In this case, the request should be repeated with another URI; however, future requests should still use the original URI. In contrast to how 302 was historically implemented, the request method is not allowed to be changed when reissuing the original request. For example, a POST request should be repeated using another POST request.

308 Permanent Redirect

This and all future requests should be directed to the given URI. 308 parallel the behaviour of 301, but does not allow the HTTP method to change. So, for example, submitting a form to a permanently redirected resource may continue smoothly.

4xx client errors

This class of status code is intended for situations in which the error seems to have been caused by the client. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition. These status codes are applicable to any request method. User agents should display any included entity to the user.

400 Bad Request

The server cannot or will not process the request due to an apparent client error (e.g., malformed request syntax, size too large, invalid request message framing, or deceptive request routing).

401 Unauthorized

Similar to 403 Forbidden, but specifically for use when authentication is required and has failed or has not yet been provided. The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource. See Basic access authentication and Digest access authentication. 401 semantically means «unauthorised», the user does not have valid authentication credentials for the target resource.

Some sites incorrectly issue HTTP 401 when an IP address is banned from the website (usually the website domain) and that specific address is refused permission to access a website.^{[citation needed]}

402 Payment Required

Reserved for future use. The original intention was that this code might be used as part of some form of digital cash or micropayment scheme, as proposed, for example, by GNU Taler,^[13] but that has not yet happened, and this code is not widely used. Google Developers API uses this status if a particular developer has exceeded the daily limit on requests.^[14] Sipgate uses this code if an account does not have sufficient funds to start a call.^[15] Shopify uses this code when the store has not paid their fees and is temporarily disabled.^[16] Stripe uses this code for failed payments where parameters were correct, for example blocked fraudulent payments.^[17]

403 Forbidden

The request contained valid data and was understood by the server, but the server is refusing action. This may be due to the user not having the necessary permissions for a resource or needing an account of some sort, or attempting a prohibited action (e.g. creating a duplicate record where only one is allowed). This code is also typically used if the request provided authentication by answering the WWW-Authenticate header field challenge, but the server did not accept that authentication. The request should not be repeated.

404 Not Found

The requested resource could not be found but may be available in the future. Subsequent requests by the client are permissible.

405 Method Not Allowed

A request method is not supported for the requested resource; for example, a GET request on a form that requires data to be presented via POST, or a PUT request on a read-only resource.

406 Not Acceptable

The requested resource is capable of generating only content not acceptable according to the Accept headers sent in the request. See Content negotiation.

407 Proxy Authentication Required

The client must first authenticate itself with the proxy.

408 Request Timeout

The server timed out waiting for the request. According to HTTP specifications: «The client did not produce a request within the time that the server was prepared to wait. The client MAY repeat the request without modifications at any later time.»

409 Conflict

Indicates that the request could not be processed because of conflict in the current state of the resource, such as an edit conflict between multiple simultaneous updates.

410 Gone

Indicates that the resource requested was previously in use but is no longer available and will not be available again. This should be used when a resource has been intentionally removed and the resource should be purged. Upon receiving a 410 status code, the client should not request the resource in the future. Clients such as search engines should remove the resource from their indices. Most use cases do not require clients and search engines to purge the resource, and a «404 Not Found» may be used instead.

411 Length Required

The request did not specify the length of its content, which is required by the requested resource.

412 Precondition Failed

The server does not meet one of the preconditions that the requester put on the request header fields.

413 Payload Too Large

The request is larger than the server is willing or able to process. Previously called «Request Entity Too Large» in RFC 2616.^[18]

414 URI Too Long

The URI provided was too long for the server to process. Often the result of too much data being encoded as a query-string of a GET request, in which case it should be converted to a POST request. Called «Request-URI Too Long» previously in RFC 2616.^[19]

415 Unsupported Media Type

The request entity has a media type which the server or resource does not support. For example, the client uploads an image as image/svg+xml, but the server requires that images use a different format.

416 Range Not Satisfiable

The client has asked for a portion of the file (byte serving), but the server cannot supply that portion. For example, if the client asked for a part of the file that lies beyond the end of the file. Called «Requested Range Not Satisfiable» previously RFC 2616.^[20]

417 Expectation Failed

The server cannot meet the requirements of the Expect request-header field.^[21]

418 I’m a teapot (RFC 2324, RFC 7168)

This code was defined in 1998 as one of the traditional IETF April Fools’ jokes, in RFC 2324, Hyper Text Coffee Pot Control Protocol, and is not expected to be implemented by actual HTTP servers. The RFC specifies this code should be returned by teapots requested to brew coffee.^[22] This HTTP status is used as an Easter egg in some websites, such as Google.com’s «I’m a teapot» easter egg.^[23][24][25] Sometimes, this status code is also used as a response to a blocked request, instead of the more appropriate 403 Forbidden.^[26][27]

421 Misdirected Request

The request was directed at a server that is not able to produce a response (for example because of connection reuse).

422 Unprocessable Entity

The request was well-formed but was unable to be followed due to semantic errors.^[8]

423 Locked (WebDAV; RFC 4918)

The resource that is being accessed is locked.^[8]

424 Failed Dependency (WebDAV; RFC 4918)

The request failed because it depended on another request and that request failed (e.g., a PROPPATCH).^[8]

425 Too Early (RFC 8470)

Indicates that the server is unwilling to risk processing a request that might be replayed.

426 Upgrade Required

The client should switch to a different protocol such as TLS/1.3, given in the Upgrade header field.

428 Precondition Required (RFC 6585)

The origin server requires the request to be conditional. Intended to prevent the ‘lost update’ problem, where a client GETs a resource’s state, modifies it, and PUTs it back to the server, when meanwhile a third party has modified the state on the server, leading to a conflict.^[28]

429 Too Many Requests (RFC 6585)

The user has sent too many requests in a given amount of time. Intended for use with rate-limiting schemes.^[28]

431 Request Header Fields Too Large (RFC 6585)

The server is unwilling to process the request because either an individual header field, or all the header fields collectively, are too large.^[28]

451 Unavailable For Legal Reasons (RFC 7725)

A server operator has received a legal demand to deny access to a resource or to a set of resources that includes the requested resource.^[29] The code 451 was chosen as a reference to the novel Fahrenheit 451 (see the Acknowledgements in the RFC).

5xx server errors

The server failed to fulfil a request.

Response status codes beginning with the digit «5» indicate cases in which the server is aware that it has encountered an error or is otherwise incapable of performing the request. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and indicate whether it is a temporary or permanent condition. Likewise, user agents should display any included entity to the user. These response codes are applicable to any request method.

500 Internal Server Error

A generic error message, given when an unexpected condition was encountered and no more specific message is suitable.

501 Not Implemented

The server either does not recognize the request method, or it lacks the ability to fulfil the request. Usually this implies future availability (e.g., a new feature of a web-service API).

502 Bad Gateway

The server was acting as a gateway or proxy and received an invalid response from the upstream server.

503 Service Unavailable

The server cannot handle the request (because it is overloaded or down for maintenance). Generally, this is a temporary state.^[30]

504 Gateway Timeout

The server was acting as a gateway or proxy and did not receive a timely response from the upstream server.

505 HTTP Version Not Supported

The server does not support the HTTP version used in the request.

506 Variant Also Negotiates (RFC 2295)

Transparent content negotiation for the request results in a circular reference.^[31]

507 Insufficient Storage (WebDAV; RFC 4918)

The server is unable to store the representation needed to complete the request.^[8]

508 Loop Detected (WebDAV; RFC 5842)

The server detected an infinite loop while processing the request (sent instead of 208 Already Reported).

510 Not Extended (RFC 2774)

Further extensions to the request are required for the server to fulfill it.^[32]

511 Network Authentication Required (RFC 6585)

The client needs to authenticate to gain network access. Intended for use by intercepting proxies used to control access to the network (e.g., «captive portals» used to require agreement to Terms of Service before granting full Internet access via a Wi-Fi hotspot).^[28]

Unofficial codes

The following codes are not specified by any standard.

419 Page Expired (Laravel Framework)

Used by the Laravel Framework when a CSRF Token is missing or expired.

420 Method Failure (Spring Framework)

A deprecated response used by the Spring Framework when a method has failed.^[33]

420 Enhance Your Calm (Twitter)

Returned by version 1 of the Twitter Search and Trends API when the client is being rate limited; versions 1.1 and later use the 429 Too Many Requests response code instead.^[34] The phrase «Enhance your calm» comes from the 1993 movie Demolition Man, and its association with this number is likely a reference to cannabis.^{[citation needed]}

430 Request Header Fields Too Large (Shopify)

Used by Shopify, instead of the 429 Too Many Requests response code, when too many URLs are requested within a certain time frame.^[35]

450 Blocked by Windows Parental Controls (Microsoft)

The Microsoft extension code indicated when Windows Parental Controls are turned on and are blocking access to the requested webpage.^[36]

498 Invalid Token (Esri)

Returned by ArcGIS for Server. Code 498 indicates an expired or otherwise invalid token.^[37]

499 Token Required (Esri)

Returned by ArcGIS for Server. Code 499 indicates that a token is required but was not submitted.^[37]

509 Bandwidth Limit Exceeded (Apache Web Server/cPanel)

The server has exceeded the bandwidth specified by the server administrator; this is often used by shared hosting providers to limit the bandwidth of customers.^[38]

529 Site is overloaded

Used by Qualys in the SSLLabs server testing API to signal that the site can’t process the request.^[39]

530 Site is frozen

Used by the Pantheon Systems web platform to indicate a site that has been frozen due to inactivity.^[40]

598 (Informal convention) Network read timeout error

Used by some HTTP proxies to signal a network read timeout behind the proxy to a client in front of the proxy.^[41]

599 Network Connect Timeout Error

An error used by some HTTP proxies to signal a network connect timeout behind the proxy to a client in front of the proxy.

Internet Information Services

Microsoft’s Internet Information Services (IIS) web server expands the 4xx error space to signal errors with the client’s request.

440 Login Time-out

The client’s session has expired and must log in again.^[42]

449 Retry With

The server cannot honour the request because the user has not provided the required information.^[43]

451 Redirect

Used in Exchange ActiveSync when either a more efficient server is available or the server cannot access the users’ mailbox.^[44] The client is expected to re-run the HTTP AutoDiscover operation to find a more appropriate server.^[45]

IIS sometimes uses additional decimal sub-codes for more specific information,^[46] however these sub-codes only appear in the response payload and in documentation, not in the place of an actual HTTP status code.

nginx

The nginx web server software expands the 4xx error space to signal issues with the client’s request.^[47][48]

444 No Response

Used internally^[49] to instruct the server to return no information to the client and close the connection immediately.

494 Request header too large

Client sent too large request or too long header line.

495 SSL Certificate Error

An expansion of the 400 Bad Request response code, used when the client has provided an invalid client certificate.

496 SSL Certificate Required

An expansion of the 400 Bad Request response code, used when a client certificate is required but not provided.

497 HTTP Request Sent to HTTPS Port

An expansion of the 400 Bad Request response code, used when the client has made a HTTP request to a port listening for HTTPS requests.

499 Client Closed Request

Used when the client has closed the request before the server could send a response.

Cloudflare

Cloudflare’s reverse proxy service expands the 5xx series of errors space to signal issues with the origin server.^[50]

520 Web Server Returned an Unknown Error

The origin server returned an empty, unknown, or unexpected response to Cloudflare.^[51]

521 Web Server Is Down

The origin server refused connections from Cloudflare. Security solutions at the origin may be blocking legitimate connections from certain Cloudflare IP addresses.

522 Connection Timed Out

Cloudflare timed out contacting the origin server.

523 Origin Is Unreachable

Cloudflare could not reach the origin server; for example, if the DNS records for the origin server are incorrect or missing.

524 A Timeout Occurred

Cloudflare was able to complete a TCP connection to the origin server, but did not receive a timely HTTP response.

525 SSL Handshake Failed

Cloudflare could not negotiate a SSL/TLS handshake with the origin server.

526 Invalid SSL Certificate

Cloudflare could not validate the SSL certificate on the origin web server. Also used by Cloud Foundry’s gorouter.

527 Railgun Error

Error 527 indicates an interrupted connection between Cloudflare and the origin server’s Railgun server.^[52]

530

Error 530 is returned along with a 1xxx error.^[53]

AWS Elastic Load Balancer

Amazon’s Elastic Load Balancing adds a few custom return codes

460

Client closed the connection with the load balancer before the idle timeout period elapsed. Typically when client timeout is sooner than the Elastic Load Balancer’s timeout.^[54]

463

The load balancer received an X-Forwarded-For request header with more than 30 IP addresses.^[54]

561 Unauthorized

An error around authentication returned by a server registered with a load balancer. You configured a listener rule to authenticate users, but the identity provider (IdP) returned an error code when authenticating the user.^[55]

Caching warning codes (obsoleted)

The following caching related warning codes were specified under RFC 7234. Unlike the other status codes above, these were not sent as the response status in the HTTP protocol, but as part of the «Warning» HTTP header.^[56][57]

Since this «Warning» header is often neither sent by servers nor acknowledged by clients, this header and its codes were obsoleted by the HTTP Working Group in 2022 with RFC 9111.^[58]

110 Response is Stale

The response provided by a cache is stale (the content’s age exceeds a maximum age set by a Cache-Control header or heuristically chosen lifetime).

111 Revalidation Failed

The cache was unable to validate the response, due to an inability to reach the origin server.

112 Disconnected Operation

The cache is intentionally disconnected from the rest of the network.

113 Heuristic Expiration

The cache heuristically chose a freshness lifetime greater than 24 hours and the response’s age is greater than 24 hours.

199 Miscellaneous Warning

Arbitrary, non-specific warning. The warning text may be logged or presented to the user.

214 Transformation Applied

Added by a proxy if it applies any transformation to the representation, such as changing the content encoding, media type or the like.

299 Miscellaneous Persistent Warning

Same as 199, but indicating a persistent warning.

See also

• Custom error pages
• List of FTP server return codes
• List of HTTP header fields
• List of SMTP server return codes
• Common Log Format

Explanatory notes

References

External links

• «RFC 9110: HTTP Semantics and Content, Section 15 «Status Codes»«.
• Hypertext Transfer Protocol (HTTP) Status Code Registry

From Wikipedia, the free encyclopedia

This is a list of Hypertext Transfer Protocol (HTTP) response status codes. Status codes are issued by a server in response to a client’s request made to the server. It includes codes from IETF Request for Comments (RFCs), other specifications, and some additional codes used in some common applications of the HTTP. The first digit of the status code specifies one of five standard classes of responses. The optional message phrases shown are typical, but any human-readable alternative may be provided, or none at all.

Unless otherwise stated, the status code is part of the HTTP standard (RFC 9110).

The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes.^[1]

All HTTP response status codes are separated into five classes or categories. The first digit of the status code defines the class of response, while the last two digits do not have any classifying or categorization role. There are five classes defined by the standard:

• 1xx informational response – the request was received, continuing process
• 2xx successful – the request was successfully received, understood, and accepted
• 3xx redirection – further action needs to be taken in order to complete the request
• 4xx client error – the request contains bad syntax or cannot be fulfilled
• 5xx server error – the server failed to fulfil an apparently valid request

1xx informational response

An informational response indicates that the request was received and understood. It is issued on a provisional basis while request processing continues. It alerts the client to wait for a final response. The message consists only of the status line and optional header fields, and is terminated by an empty line. As the HTTP/1.0 standard did not define any 1xx status codes, servers must not^{[note 1]} send a 1xx response to an HTTP/1.0 compliant client except under experimental conditions.

100 Continue

The server has received the request headers and the client should proceed to send the request body (in the case of a request for which a body needs to be sent; for example, a POST request). Sending a large request body to a server after a request has been rejected for inappropriate headers would be inefficient. To have a server check the request’s headers, a client must send Expect: 100-continue as a header in its initial request and receive a 100 Continue status code in response before sending the body. If the client receives an error code such as 403 (Forbidden) or 405 (Method Not Allowed) then it should not send the request’s body. The response 417 Expectation Failed indicates that the request should be repeated without the Expect header as it indicates that the server does not support expectations (this is the case, for example, of HTTP/1.0 servers).^[2]

101 Switching Protocols

The requester has asked the server to switch protocols and the server has agreed to do so.

102 Processing (WebDAV; RFC 2518)

A WebDAV request may contain many sub-requests involving file operations, requiring a long time to complete the request. This code indicates that the server has received and is processing the request, but no response is available yet.^[3] This prevents the client from timing out and assuming the request was lost.

103 Early Hints (RFC 8297)

Used to return some response headers before final HTTP message.^[4]

2xx success

This class of status codes indicates the action requested by the client was received, understood, and accepted.^[1]

200 OK

Standard response for successful HTTP requests. The actual response will depend on the request method used. In a GET request, the response will contain an entity corresponding to the requested resource. In a POST request, the response will contain an entity describing or containing the result of the action.

201 Created

The request has been fulfilled, resulting in the creation of a new resource.^[5]

202 Accepted

The request has been accepted for processing, but the processing has not been completed. The request might or might not be eventually acted upon, and may be disallowed when processing occurs.

203 Non-Authoritative Information (since HTTP/1.1)

The server is a transforming proxy (e.g. a Web accelerator) that received a 200 OK from its origin, but is returning a modified version of the origin’s response.^[6][7]

204 No Content

The server successfully processed the request, and is not returning any content.

205 Reset Content

The server successfully processed the request, asks that the requester reset its document view, and is not returning any content.

206 Partial Content

The server is delivering only part of the resource (byte serving) due to a range header sent by the client. The range header is used by HTTP clients to enable resuming of interrupted downloads, or split a download into multiple simultaneous streams.

207 Multi-Status (WebDAV; RFC 4918)

The message body that follows is by default an XML message and can contain a number of separate response codes, depending on how many sub-requests were made.^[8]

208 Already Reported (WebDAV; RFC 5842)

The members of a DAV binding have already been enumerated in a preceding part of the (multistatus) response, and are not being included again.

226 IM Used (RFC 3229)

The server has fulfilled a request for the resource, and the response is a representation of the result of one or more instance-manipulations applied to the current instance.^[9]

3xx redirection

This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection.^[1]

A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD. A user agent may automatically redirect a request. A user agent should detect and intervene to prevent cyclical redirects.^[10]

300 Multiple Choices

Indicates multiple options for the resource from which the client may choose (via agent-driven content negotiation). For example, this code could be used to present multiple video format options, to list files with different filename extensions, or to suggest word-sense disambiguation.

301 Moved Permanently

This and all future requests should be directed to the given URI.

302 Found (Previously «Moved temporarily»)

Tells the client to look at (browse to) another URL. The HTTP/1.0 specification (RFC 1945) required the client to perform a temporary redirect with the same method (the original describing phrase was «Moved Temporarily»),^[11] but popular browsers implemented 302 redirects by changing the method to GET. Therefore, HTTP/1.1 added status codes 303 and 307 to distinguish between the two behaviours.^[10]

303 See Other (since HTTP/1.1)

The response to the request can be found under another URI using the GET method. When received in response to a POST (or PUT/DELETE), the client should presume that the server has received the data and should issue a new GET request to the given URI.

304 Not Modified

Indicates that the resource has not been modified since the version specified by the request headers If-Modified-Since or If-None-Match. In such case, there is no need to retransmit the resource since the client still has a previously-downloaded copy.

305 Use Proxy (since HTTP/1.1)

The requested resource is available only through a proxy, the address for which is provided in the response. For security reasons, many HTTP clients (such as Mozilla Firefox and Internet Explorer) do not obey this status code.

306 Switch Proxy

No longer used. Originally meant «Subsequent requests should use the specified proxy.»

307 Temporary Redirect (since HTTP/1.1)

In this case, the request should be repeated with another URI; however, future requests should still use the original URI. In contrast to how 302 was historically implemented, the request method is not allowed to be changed when reissuing the original request. For example, a POST request should be repeated using another POST request.

308 Permanent Redirect

This and all future requests should be directed to the given URI. 308 parallel the behaviour of 301, but does not allow the HTTP method to change. So, for example, submitting a form to a permanently redirected resource may continue smoothly.

4xx client errors

This class of status code is intended for situations in which the error seems to have been caused by the client. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition. These status codes are applicable to any request method. User agents should display any included entity to the user.

400 Bad Request

The server cannot or will not process the request due to an apparent client error (e.g., malformed request syntax, size too large, invalid request message framing, or deceptive request routing).

401 Unauthorized

Similar to 403 Forbidden, but specifically for use when authentication is required and has failed or has not yet been provided. The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource. See Basic access authentication and Digest access authentication. 401 semantically means «unauthorised», the user does not have valid authentication credentials for the target resource.

Some sites incorrectly issue HTTP 401 when an IP address is banned from the website (usually the website domain) and that specific address is refused permission to access a website.^{[citation needed]}

402 Payment Required

Reserved for future use. The original intention was that this code might be used as part of some form of digital cash or micropayment scheme, as proposed, for example, by GNU Taler,^[13] but that has not yet happened, and this code is not widely used. Google Developers API uses this status if a particular developer has exceeded the daily limit on requests.^[14] Sipgate uses this code if an account does not have sufficient funds to start a call.^[15] Shopify uses this code when the store has not paid their fees and is temporarily disabled.^[16] Stripe uses this code for failed payments where parameters were correct, for example blocked fraudulent payments.^[17]

403 Forbidden

The request contained valid data and was understood by the server, but the server is refusing action. This may be due to the user not having the necessary permissions for a resource or needing an account of some sort, or attempting a prohibited action (e.g. creating a duplicate record where only one is allowed). This code is also typically used if the request provided authentication by answering the WWW-Authenticate header field challenge, but the server did not accept that authentication. The request should not be repeated.

404 Not Found

The requested resource could not be found but may be available in the future. Subsequent requests by the client are permissible.

405 Method Not Allowed

A request method is not supported for the requested resource; for example, a GET request on a form that requires data to be presented via POST, or a PUT request on a read-only resource.

406 Not Acceptable

The requested resource is capable of generating only content not acceptable according to the Accept headers sent in the request. See Content negotiation.

407 Proxy Authentication Required

The client must first authenticate itself with the proxy.

408 Request Timeout

The server timed out waiting for the request. According to HTTP specifications: «The client did not produce a request within the time that the server was prepared to wait. The client MAY repeat the request without modifications at any later time.»

409 Conflict

Indicates that the request could not be processed because of conflict in the current state of the resource, such as an edit conflict between multiple simultaneous updates.

410 Gone

Indicates that the resource requested was previously in use but is no longer available and will not be available again. This should be used when a resource has been intentionally removed and the resource should be purged. Upon receiving a 410 status code, the client should not request the resource in the future. Clients such as search engines should remove the resource from their indices. Most use cases do not require clients and search engines to purge the resource, and a «404 Not Found» may be used instead.

411 Length Required

The request did not specify the length of its content, which is required by the requested resource.

412 Precondition Failed

The server does not meet one of the preconditions that the requester put on the request header fields.

413 Payload Too Large

The request is larger than the server is willing or able to process. Previously called «Request Entity Too Large» in RFC 2616.^[18]

414 URI Too Long

The URI provided was too long for the server to process. Often the result of too much data being encoded as a query-string of a GET request, in which case it should be converted to a POST request. Called «Request-URI Too Long» previously in RFC 2616.^[19]

415 Unsupported Media Type

The request entity has a media type which the server or resource does not support. For example, the client uploads an image as image/svg+xml, but the server requires that images use a different format.

416 Range Not Satisfiable

The client has asked for a portion of the file (byte serving), but the server cannot supply that portion. For example, if the client asked for a part of the file that lies beyond the end of the file. Called «Requested Range Not Satisfiable» previously RFC 2616.^[20]

417 Expectation Failed

The server cannot meet the requirements of the Expect request-header field.^[21]

418 I’m a teapot (RFC 2324, RFC 7168)

This code was defined in 1998 as one of the traditional IETF April Fools’ jokes, in RFC 2324, Hyper Text Coffee Pot Control Protocol, and is not expected to be implemented by actual HTTP servers. The RFC specifies this code should be returned by teapots requested to brew coffee.^[22] This HTTP status is used as an Easter egg in some websites, such as Google.com’s «I’m a teapot» easter egg.^[23][24][25] Sometimes, this status code is also used as a response to a blocked request, instead of the more appropriate 403 Forbidden.^[26][27]

421 Misdirected Request

The request was directed at a server that is not able to produce a response (for example because of connection reuse).

422 Unprocessable Entity

The request was well-formed but was unable to be followed due to semantic errors.^[8]

423 Locked (WebDAV; RFC 4918)

The resource that is being accessed is locked.^[8]

424 Failed Dependency (WebDAV; RFC 4918)

The request failed because it depended on another request and that request failed (e.g., a PROPPATCH).^[8]

425 Too Early (RFC 8470)

Indicates that the server is unwilling to risk processing a request that might be replayed.

426 Upgrade Required

The client should switch to a different protocol such as TLS/1.3, given in the Upgrade header field.

428 Precondition Required (RFC 6585)

The origin server requires the request to be conditional. Intended to prevent the ‘lost update’ problem, where a client GETs a resource’s state, modifies it, and PUTs it back to the server, when meanwhile a third party has modified the state on the server, leading to a conflict.^[28]

429 Too Many Requests (RFC 6585)

The user has sent too many requests in a given amount of time. Intended for use with rate-limiting schemes.^[28]

431 Request Header Fields Too Large (RFC 6585)

The server is unwilling to process the request because either an individual header field, or all the header fields collectively, are too large.^[28]

451 Unavailable For Legal Reasons (RFC 7725)

A server operator has received a legal demand to deny access to a resource or to a set of resources that includes the requested resource.^[29] The code 451 was chosen as a reference to the novel Fahrenheit 451 (see the Acknowledgements in the RFC).

5xx server errors

The server failed to fulfil a request.

Response status codes beginning with the digit «5» indicate cases in which the server is aware that it has encountered an error or is otherwise incapable of performing the request. Except when responding to a HEAD request, the server should include an entity containing an explanation of the error situation, and indicate whether it is a temporary or permanent condition. Likewise, user agents should display any included entity to the user. These response codes are applicable to any request method.

500 Internal Server Error

A generic error message, given when an unexpected condition was encountered and no more specific message is suitable.

501 Not Implemented

The server either does not recognize the request method, or it lacks the ability to fulfil the request. Usually this implies future availability (e.g., a new feature of a web-service API).

502 Bad Gateway

The server was acting as a gateway or proxy and received an invalid response from the upstream server.

503 Service Unavailable

The server cannot handle the request (because it is overloaded or down for maintenance). Generally, this is a temporary state.^[30]

504 Gateway Timeout

The server was acting as a gateway or proxy and did not receive a timely response from the upstream server.

505 HTTP Version Not Supported

The server does not support the HTTP version used in the request.

506 Variant Also Negotiates (RFC 2295)

Transparent content negotiation for the request results in a circular reference.^[31]

507 Insufficient Storage (WebDAV; RFC 4918)

The server is unable to store the representation needed to complete the request.^[8]

508 Loop Detected (WebDAV; RFC 5842)

The server detected an infinite loop while processing the request (sent instead of 208 Already Reported).

510 Not Extended (RFC 2774)

Further extensions to the request are required for the server to fulfill it.^[32]

511 Network Authentication Required (RFC 6585)

The client needs to authenticate to gain network access. Intended for use by intercepting proxies used to control access to the network (e.g., «captive portals» used to require agreement to Terms of Service before granting full Internet access via a Wi-Fi hotspot).^[28]

Unofficial codes

The following codes are not specified by any standard.

419 Page Expired (Laravel Framework)

Used by the Laravel Framework when a CSRF Token is missing or expired.

420 Method Failure (Spring Framework)

A deprecated response used by the Spring Framework when a method has failed.^[33]

420 Enhance Your Calm (Twitter)

Returned by version 1 of the Twitter Search and Trends API when the client is being rate limited; versions 1.1 and later use the 429 Too Many Requests response code instead.^[34] The phrase «Enhance your calm» comes from the 1993 movie Demolition Man, and its association with this number is likely a reference to cannabis.^{[citation needed]}

430 Request Header Fields Too Large (Shopify)

Used by Shopify, instead of the 429 Too Many Requests response code, when too many URLs are requested within a certain time frame.^[35]

450 Blocked by Windows Parental Controls (Microsoft)

The Microsoft extension code indicated when Windows Parental Controls are turned on and are blocking access to the requested webpage.^[36]

498 Invalid Token (Esri)

Returned by ArcGIS for Server. Code 498 indicates an expired or otherwise invalid token.^[37]

499 Token Required (Esri)

Returned by ArcGIS for Server. Code 499 indicates that a token is required but was not submitted.^[37]

509 Bandwidth Limit Exceeded (Apache Web Server/cPanel)

The server has exceeded the bandwidth specified by the server administrator; this is often used by shared hosting providers to limit the bandwidth of customers.^[38]

529 Site is overloaded

Used by Qualys in the SSLLabs server testing API to signal that the site can’t process the request.^[39]

530 Site is frozen

Used by the Pantheon Systems web platform to indicate a site that has been frozen due to inactivity.^[40]

598 (Informal convention) Network read timeout error

Used by some HTTP proxies to signal a network read timeout behind the proxy to a client in front of the proxy.^[41]

599 Network Connect Timeout Error

An error used by some HTTP proxies to signal a network connect timeout behind the proxy to a client in front of the proxy.

Internet Information Services

Microsoft’s Internet Information Services (IIS) web server expands the 4xx error space to signal errors with the client’s request.

440 Login Time-out

The client’s session has expired and must log in again.^[42]

449 Retry With

The server cannot honour the request because the user has not provided the required information.^[43]

451 Redirect

Used in Exchange ActiveSync when either a more efficient server is available or the server cannot access the users’ mailbox.^[44] The client is expected to re-run the HTTP AutoDiscover operation to find a more appropriate server.^[45]

IIS sometimes uses additional decimal sub-codes for more specific information,^[46] however these sub-codes only appear in the response payload and in documentation, not in the place of an actual HTTP status code.

nginx

The nginx web server software expands the 4xx error space to signal issues with the client’s request.^[47][48]

444 No Response

Used internally^[49] to instruct the server to return no information to the client and close the connection immediately.

494 Request header too large

Client sent too large request or too long header line.

495 SSL Certificate Error

An expansion of the 400 Bad Request response code, used when the client has provided an invalid client certificate.

496 SSL Certificate Required

An expansion of the 400 Bad Request response code, used when a client certificate is required but not provided.

497 HTTP Request Sent to HTTPS Port

An expansion of the 400 Bad Request response code, used when the client has made a HTTP request to a port listening for HTTPS requests.

499 Client Closed Request

Used when the client has closed the request before the server could send a response.

Cloudflare

Cloudflare’s reverse proxy service expands the 5xx series of errors space to signal issues with the origin server.^[50]

520 Web Server Returned an Unknown Error

The origin server returned an empty, unknown, or unexpected response to Cloudflare.^[51]

521 Web Server Is Down

The origin server refused connections from Cloudflare. Security solutions at the origin may be blocking legitimate connections from certain Cloudflare IP addresses.

522 Connection Timed Out

Cloudflare timed out contacting the origin server.

523 Origin Is Unreachable

Cloudflare could not reach the origin server; for example, if the DNS records for the origin server are incorrect or missing.

524 A Timeout Occurred

Cloudflare was able to complete a TCP connection to the origin server, but did not receive a timely HTTP response.

525 SSL Handshake Failed

Cloudflare could not negotiate a SSL/TLS handshake with the origin server.

526 Invalid SSL Certificate

Cloudflare could not validate the SSL certificate on the origin web server. Also used by Cloud Foundry’s gorouter.

527 Railgun Error

Error 527 indicates an interrupted connection between Cloudflare and the origin server’s Railgun server.^[52]

530

Error 530 is returned along with a 1xxx error.^[53]

AWS Elastic Load Balancer

Amazon’s Elastic Load Balancing adds a few custom return codes

460

Client closed the connection with the load balancer before the idle timeout period elapsed. Typically when client timeout is sooner than the Elastic Load Balancer’s timeout.^[54]

463

The load balancer received an X-Forwarded-For request header with more than 30 IP addresses.^[54]

561 Unauthorized

An error around authentication returned by a server registered with a load balancer. You configured a listener rule to authenticate users, but the identity provider (IdP) returned an error code when authenticating the user.^[55]

Caching warning codes (obsoleted)

The following caching related warning codes were specified under RFC 7234. Unlike the other status codes above, these were not sent as the response status in the HTTP protocol, but as part of the «Warning» HTTP header.^[56][57]

Since this «Warning» header is often neither sent by servers nor acknowledged by clients, this header and its codes were obsoleted by the HTTP Working Group in 2022 with RFC 9111.^[58]

110 Response is Stale

The response provided by a cache is stale (the content’s age exceeds a maximum age set by a Cache-Control header or heuristically chosen lifetime).

111 Revalidation Failed

The cache was unable to validate the response, due to an inability to reach the origin server.

112 Disconnected Operation

The cache is intentionally disconnected from the rest of the network.

113 Heuristic Expiration

The cache heuristically chose a freshness lifetime greater than 24 hours and the response’s age is greater than 24 hours.

199 Miscellaneous Warning

Arbitrary, non-specific warning. The warning text may be logged or presented to the user.

214 Transformation Applied

Added by a proxy if it applies any transformation to the representation, such as changing the content encoding, media type or the like.

299 Miscellaneous Persistent Warning

Same as 199, but indicating a persistent warning.

See also

• Custom error pages
• List of FTP server return codes
• List of HTTP header fields
• List of SMTP server return codes
• Common Log Format

Explanatory notes

References

External links

• «RFC 9110: HTTP Semantics and Content, Section 15 «Status Codes»«.
• Hypertext Transfer Protocol (HTTP) Status Code Registry

	Номер ошибки:	Ошибка 599
Название ошибки:	Crystal Reports 8.5 Error 599
Описание ошибки:	Ошибка 599: Возникла ошибка в приложении Crystal Reports. Приложение будет закрыто. Приносим извинения за неудобства.
Разработчик:	SAP SE
Программное обеспечение:	Crystal Reports
Относится к:	Windows XP, Vista, 7, 8, 10, 11

Оценка «Crystal Reports 8.5 Error 599»

«Crystal Reports 8.5 Error 599» обычно называется формой «ошибки времени выполнения». Разработчики программного обеспечения пытаются обеспечить, чтобы программное обеспечение было свободным от этих сбоев, пока оно не будет публично выпущено. К сожалению, иногда ошибки, такие как ошибка 599, могут быть пропущены во время этого процесса.

Некоторые пользователи могут столкнуться с сообщением «Crystal Reports 8.5 Error 599» при использовании Crystal Reports. После того, как об ошибке будет сообщено, SAP SE отреагирует и быстро исследует ошибки 599 проблемы. Затем они исправляют дефектные области кода и сделают обновление доступным для загрузки. Следовательно, разработчик будет использовать пакет обновления Crystal Reports для устранения ошибки 599 и любых других сообщений об ошибках.

В чем причина ошибки 599?

Наиболее распространенные вхождения «Crystal Reports 8.5 Error 599» проблемы при загрузке Crystal Reports. Рассмотрим распространенные причины ошибок ошибки 599 во время выполнения:

Ошибка 599 Crash — это распространенная ошибка 599 во время выполнения ошибки, которая приводит к полному завершению работы программы. Как правило, это результат того, что Crystal Reports не понимает входные данные или не знает, что выводить в ответ.

«Crystal Reports 8.5 Error 599» Утечка памяти — Ошибка 599 утечка памяти происходит и предоставляет Crystal Reports в качестве виновника, перетаскивая производительность вашего ПК. Потенциальные триггеры могут быть «бесконечным циклом», или когда программа выполняет «цикл» или повторение снова и снова.

Ошибка 599 Logic Error — Компьютерная система создает неверную информацию или дает другой результат, даже если входные данные являются точными. Это видно, когда исходный код SAP SE включает дефект в анализе входных данных.

SAP SE проблемы с Crystal Reports 8.5 Error 599 чаще всего связаны с повреждением или отсутствием файла Crystal Reports. Для устранения неполадок, связанных с файлом SAP SE, большинство профессионалов ПК заменят файл на соответствующую версию. Кроме того, некоторые ошибки Crystal Reports 8.5 Error 599 могут возникать по причине наличия неправильных ссылок на реестр. По этой причине для очистки недействительных записей рекомендуется выполнить сканирование реестра.

Распространенные проблемы Crystal Reports 8.5 Error 599

Crystal Reports 8.5 Error 599 Проблемы, связанные с Crystal Reports:

• «Ошибка приложения Crystal Reports 8.5 Error 599.»
• «Crystal Reports 8.5 Error 599 не является программой Win32. «
• «Crystal Reports 8.5 Error 599 столкнулся с проблемой и закроется. «
• «Не удается найти Crystal Reports 8.5 Error 599»
• «Crystal Reports 8.5 Error 599 не найден.»
• «Проблема при запуске приложения: Crystal Reports 8.5 Error 599. «
• «Не удается запустить Crystal Reports 8.5 Error 599. «
• «Crystal Reports 8.5 Error 599 остановлен. «
• «Неверный путь к приложению: Crystal Reports 8.5 Error 599.»

Эти сообщения об ошибках SAP SE могут появляться во время установки программы, в то время как программа, связанная с Crystal Reports 8.5 Error 599 (например, Crystal Reports) работает, во время запуска или завершения работы Windows, или даже во время установки операционной системы Windows. Важно отметить, когда возникают проблемы Crystal Reports 8.5 Error 599, так как это помогает устранять проблемы Crystal Reports (и сообщать в SAP SE).

Crystal Reports 8.5 Error 599 Истоки проблем

Заражение вредоносными программами, недопустимые записи реестра Crystal Reports или отсутствующие или поврежденные файлы Crystal Reports 8.5 Error 599 могут создать эти ошибки Crystal Reports 8.5 Error 599.

Особенно ошибки Crystal Reports 8.5 Error 599 проистекают из:

• Недопустимые разделы реестра Crystal Reports 8.5 Error 599/повреждены.
• Зазаражение вредоносными программами повредил файл Crystal Reports 8.5 Error 599.
• Другая программа (не связанная с Crystal Reports) удалила Crystal Reports 8.5 Error 599 злонамеренно или по ошибке.
• Другая программа находится в конфликте с Crystal Reports и его общими файлами ссылок.
• Crystal Reports/Crystal Reports 8.5 Error 599 поврежден от неполной загрузки или установки.

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