For example, this code could be used to present multiple video format options, to list files with different extensions, or to suggest word sense disambiguation. 301 Moved Permanently This and all future requests should be directed to the given URI. 302 Found This is an example of industry practice contradicting the standard. The server is indicating that it is unable or unwilling to complete the request using the same major version as the client, as described in section 3.1, other than with this error message. The response SHOULD contain an entity describing why that version is not supported and what other protocols are supported by that server. Not implemented 501 The server does not support the facility required. this contact form
Clients with link editing capabilities ought to automatically re-link references to the Request-URI to one or more of the new references returned by the server, where possible. Upon receiving a 410 status code, the client should not request the resource again in the future. This error may be caused by a major change in the page after the script was recorded, or by the failure of IE to download the entire page before the Agent begins to examine the page. (The latter case usually occurs intermittently, during periods of very poor Internet download speeds.) 1020 Connection Error Internet Explorer has produced the error message "Navigation Cancelled" while trying to download this page. Unknown clients then have all traffic blocked, except for that on TCP port 80, which is sent to a HTTP server (the "login server") dedicated to "logging in" unknown clients, and of course traffic to the login server itself.
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." 429 Too Many Requests (RFC 6585) The user has sent too many requests in a given amount of time. Since the redirection MAY be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. Proxies MUST forward 1xx responses, unless the connection between the proxy and its client has been closed, or unless the proxy itself requested the generation of the 1xx response. (For example, if a proxy adds a "Expect: 100-continue" field when it forwards a request, then it need not forward the corresponding 100 (Continue) response(s).) Wikipedia Request received, continuing process.
The entity format is specified by the media type given in the Content-Type header field. This should be used when a resource has been intentionally removed and the resource should be purged. RFC 2774. Http Code 302 Docs.cpanel.net.
Retrieved October 24, 2009. ^ Nielsen, Henrik Frystyk; Leach, Paul; Lawrence, Scott (February 2000). Http Status Code 400 Retrieved 16 October 2015. ^ alex. "What is the correct HTTP status code to send when a site is down for maintenance?". Retrieved February 4, 2015. ^ "List of HTTP status codes". http://www.restapitutorial.com/httpstatuscodes.html A code of 498 indicates an expired or otherwise invalid token. 499 Token Required (Esri) Returned by ArcGIS for Server.
The request MAY be resubmitted after reducing the size of the request header fields. 451 Unavailable For Legal Reasons The user requests an illegal resource, such as a web page censored by a government. Error Code 500 The request MAY be resubmitted after reducing the size of the request header fields. It means that the server would like to shut down this unused connection. It indicates that a resource has permanently gone (a 404 status code gives no indication if a resource has gine permanently or temporarily), and no new address is known for it.411 - Length RequiredThe 411 status code occurs when a server refuses to process a request because a content length was not specified.412 - Precondition FailedA 412 status code indicates that one of the conditions the request was made under has failed.413 - Request Entity Too LargeThe 413 status code indicates that the request was larger than the server is able to handle, either due to physical constraints or to settings.
The response should indicate which HTTP versions are supported. The first digit of the status code specifies one of five classes of response; an HTTP client must recognise these five classes at a minimum. Http Status Codes Cheat Sheet Not observing these limitations has significant security consequences. Http Code 403 It, for instance, could be used to present different format options for video, list files with different extensions, or word sense disambiguation. 301 Moved Permanently The requested resource has been assigned a new permanent URI and any future references to this resource SHOULD use one of the returned URIs.
This condition is considered to be temporary. weblink The purpose of this feature is to allow efficient updates of local cache information (including relevant metainformation) without requiring the overhead of multiple HTTP requests (e.g. The status codes 303 and 307 have been added for servers that wish to make unambiguously clear which kind of reaction is expected of the client. 10.3.4 303 See Other The response to the request can be found under a different URI and SHOULD be retrieved using a GET method on that resource. Retrieved 16 October 2015. ^ "Does Google treat 404 and 410 status codes differently? (Youtube)". Http Response Example
Such an event is common for limited-time, promotional services and for resources belonging to individuals no longer working at the server's site. https://tools.ietf.org/html/rfc4918. httpstatus. http://orgias.org/error-code/html-error-page-list.html 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 server refuses to accept the request without a defined Content- Length.
Shows you what to look out for the most, and what webmasters in general are screwing up the most. 😀 Reply isha says: June 19, 2016 at 12:42 pm nice informative post Reply Leave a Reply Cancel reply Comments are moderated and not published in real time. This is used by advanced caching tools, when a user agent requests only a small part of a page, and just that section is returned. Clearing the browser's cache and cookies could solve this issue Malformed request due to a faulty browser Malformed request due to human error when manually forming HTTP requests (e.g. Common Http Error Codes For example, if the user is trying to access http://example.com/emptydir/, and there is no index file in the emptydir directory on the server, a 403 status will be returned.
This is virtually identical in meaning to a 200 status code.204 - No ContentThe 204 status code means that the request was received and understood, but that there is no need to send any data back.205 - Reset ContentThe 205 status code is a request from the server to the client to reset the document from which the original request was sent. If the request method was not HEAD and the server wishes to make public why the request has not been fulfilled, it SHOULD describe the reason for the refusal in the entity. However, most existing user agent implementations treat 302 as if it were a 303 response, performing a GET on the Location field-value regardless of the original request method. his comment is here For example, if a command in a PROPPATCH method fails, then, at minimum, the rest of the commands will also fail with 424 (Failed Dependency).
Wikipedia Indicates that the resource requested is no longer available and will not be available again. HTTP, FTP, LDAP) or some other auxiliary server (e.g. Generally, this is a temporary state. 504 Gateway Timeout The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the URI (e.g. This typically occurs in the following situations: The network connection between the servers is poor The backend server that is fulfilling the request is too slow, due to poor performance The gateway or proxy server's timeout duration is too short Conclusion Now that you are familiar with the most common HTTP error codes, and common solutions to those codes, you should have a good basis for troubleshooting issues with your web servers or applications.
Usually, this is invisible, though I'm sure you've seen one of the very common Response codes - 404, indicating a page was not found. This response is cacheable unless indicated otherwise. Wikipedia The client has asked for a portion of the file, but the server cannot supply that portion. Note: The existence of the 503 status code does not imply that a server must use it when becoming overloaded.
For example, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions. DELETE). 205 Reset Content The server has fulfilled the request and the user agent SHOULD reset the document view which caused the request to be sent. Mobile App Monitoring Code Name 60001 ActionNotCompleted Exception 60002 StateNotFound Exception 60003 Interrupted Exception 60004 Devicenotlocked Exception 60005 ScriptFailure Exception 60006 AsynchronousUser Exception 60007 Timeout error 60008 Unknown error 60009 Sequence violation error 60010 Nested timer Error 60011 All the timers not executed Error. 60012 Script implementation not found for that device. 60013 Text extracted via OCR has some special character. 60014 Script Class Could not be located. 60020 Web Element command not setup. 60021 Error code not found from action. 60023 Invalid user credentials set. 60024 Monitor activity suspended. 60025 Script Already executing. 60026 Net Exception. When a server receives that request, it sends back an HTTP Response, with information for the client.
Some reasons for this happening can for example be a broken link, a mistyped URL, or that the webmaster has moved the requested page somewhere else (or deleted it). If the server has a preferred choice of representation, it SHOULD include the specific URI for that representation in the Location field; user agents MAY use the Location field value for automatic redirection. In this case no login opportunity was available. Informational 100 - ContinueA status code of 100 indicates that (usually the first) part of a request has been received without any problems, and that the rest of the request should now be sent.101 - Switching ProtocolsHTTP 1.1 is just one type of protocol for transferring data on the web, and a status code of 101 indicates that the server is changing to the protocol it defines in the "Upgrade" header it returns to the client.
No indication is given of whether the condition is temporary or permanent. Abort Invalid PDU. 832 Abort Invalid TID. Wikipedia The server is currently unavailable (because it is overloaded or down for maintenance). Otherwise (i.e., the conditional GET used a weak validator), the response MUST NOT include other entity-headers; this prevents inconsistencies between cached entity-bodies and updated headers.
The client SHOULD NOT repeat the request without modifications. Unexpected 1xx status responses MAY be ignored by a user agent. Stack Overflow.