Remembering HTTP Status Codes is bit Difficult to remember because there are Lots of Codes and they are very difficult to remember. GirlieMac, aka Tomomi Imura have won the internet with her deftly conceived and Photoshopped series of HTTP status message. After watching these Pictures you will definitely remember some of the HTTP Codes because I learnt these codes from here Only.

You can get the Full List from Flickr .

Here are those Codes and basic means of Each Codes-

 

100 Continue

100 Continue-  This means that the server has received the request headers, and that the client should proceed to send the request body.

100 Continue- This means that the server has received the request headers, and that the client should proceed to send the request body.

 

101 Switching Protocol

101 Switching Protocol- This means the requester has asked the server to switch protocols and the server is acknowledging that it will do so.

101 Switching Protocol- This means the requester has asked the server to switch protocols and the server is acknowledging that it will do so.

 

200 OK

200 OK - Standard Response for Successful HTTP request. The actual response will depend on the request method used.

200 OK – Standard Response for Successful HTTP request. The actual response will depend on the request method used.

201 Created

201 Created - The request has been fulfilled and resulted in a new resource being created.

201 Created – The request has been fulfilled and resulted in a new resource being created.

202 Accepted

202 Accepted - The request has not been completed but has been accepted for processing and might be disallowed.

202 Accepted – The request has not been completed but has been accepted for processing and might be disallowed.

204 No Content

204 No Content - The server is not returning any content after successfully processing the request.

204 No Content – The server is not returning any content after successfully processing the request.

207 Multi-Status

207 Multi-Status-Depending on number of sub requests are made, the message body contains many different response codes.

207 Multi-Status-Depending on number of sub requests are made, the message body contains many different response codes.

300 Multiple Choice

300 Multiple Choice - It indicates that client can follow multiple options for the resources.

300 Multiple Choice – It indicates that client can follow multiple options for the resources.

301 Moved Permanently

301 Moved Permanently- In this request it should be directed to the given URI (Uniform Resource Indicator).

301 Moved Permanently- In this request it should be directed to the given URI (Uniform Resource Indicator).

302 Found

302 Found- This is an example of industry practice contradicting the standard. Some Web applications and frameworks use the 302 status code

302 Found- This is an example of industry practice contradicting the standard. Some Web applications and frameworks use the 302 status code

303 See Other

303 See Other - He response to the request can be found under another URI using a GET method.

303 See Other – He response to the request can be found under another URI using a GET method.

304 Not Modified

304 Not Modified - Indicates the resource has not been modified since last requested.

304 Not Modified – Indicates the resource has not been modified since last requested.

305 Use Proxy

305 Use Proxy Many HTTP clients do not correctly handle responses with this status code, primarily for security reasons.

305 Use Proxy-
Many HTTP clients do not correctly handle responses with this status code, primarily for security reasons.

307 Temporary Redirect

307 Temporary Redirect-  In this case, the request should be repeated with another URI but future requests should still use the original URI.

307 Temporary Redirect- In this case, the request should be repeated with another URI but future requests should still use the original URI.

400 Bad Request

400 Bad Request - Due to Bad Syntax, the request could not be filled.

400 Bad Request – Due to Bad Syntax, the request could not be filled.

401 Unauthorized

401 Unauthorized-   When authentication is required and has failed or has not yet been provided.

401 Unauthorized- When authentication is required and has failed or has not yet been provided.

402 Payment Required

402 Payment Required  Reserved for future use. This code is generally not used, but the original intension was it can be used for some form of Digital Cash.

402 Payment Required
Reserved for future use. This code is generally not used, but the original intention was it can be used for some form of Digital Cash.

403 Forbidden

403 Forbidden  The request was a valid request, but the server is refusing to respond to it.

403 Forbidden
The request was a valid request, but the server is refusing to respond to it.

404 Not Found

404 Not Found  The requested resource could not be found but may be available again in the future.

404 Not Found
The requested resource could not be found but may be available again in the future.

405 Method Not Allowed

405 Method Not Allowed  A request was made of a resource using a request method not supported by that resource.

405 Method Not Allowed
A request was made of a resource using a request method not supported by that resource.

406 Not Acceptable

406 Not Acceptable  The requested resource is only capable of generating content not acceptable according to the Accept headers sent in the request.

406 Not Acceptable
The requested resource is only capable of generating content not acceptable according to the Accept headers sent in the request.

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408 Request Timeout

408 Request Timeout  The server timed out waiting for the request.

408 Request Timeout
The server timed out waiting for the request.

409 Conflict

409 Conflict  Indicates that the request could not be processed because of conflict in the request.

409 Conflict
Indicates that the request could not be processed because of conflict in the request.

410 Gone

410 Gone  Indicates that the resource requested is no longer available and will not be available again.

410 Gone
Indicates that the resource requested is no longer available and will not be available again.

411 Length Required

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

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

413 Request Entity too Large

413 Request Entity too Large  The request is larger than the server is willing or able to process.

413 Request Entity too Large
The request is larger than the server is willing or able to process.

414 Request-URI Too Long

414 Request-URI Too Long  The URI provided was too long for the server to process.

414 Request-URI Too Long
The URI provided was too long for the server to process.

416 Requested Range Not Satisfiable

416 Requested Range Not Satisfiable  The client has asked for a portion of the file, but the server cannot supply that portion.

416 Requested Range Not Satisfiable
The client has asked for a portion of the file, but the server cannot supply that portion.

417 Expectation Failed

417 Expectation Failed  The server cannot meet the requirements of the Expect request-header field.

417 Expectation Failed
The server cannot meet the requirements of the Expect request-header field.

418 I’m a teapot

418 I'm a teapot  This code is not expected to be implemented by actual HTTP servers.

418 I’m a teapot
This code is not expected to be implemented by actual HTTP servers.

422 Unprocessable Entity

422 Unprocessable Entity  The request was well-formed but was unable to be followed due to semantic errors.

422 Unprocessable Entity
The request was well-formed but was unable to be followed due to semantic errors.

423  Locked

423  Locked  The resource that is being accessed is locked.

423 Locked
The resource that is being accessed is locked.

424 Failed Dependency

424 Failed Dependency  The request failed due to failure of a previous request.

424 Failed Dependency
The request failed due to failure of a previous request.

425 Unordered Collection

425 Unordered Collection  Defined in drafts of "WebDAV Advanced Collections Protocol".

425 Unordered Collection
Defined in drafts of “WebDAV Advanced Collections Protocol”.

426 Upgrade Required

426 Upgrade Required  The client should switch to a different protocol.

426 Upgrade Required
The client should switch to a different protocol.

429 Too Many Requests

429 Too Many Requests  The user has sent too many requests in a given amount of time.

429 Too Many Requests
The user has sent too many requests in a given amount of time.

431 Request Header Fields Too Large

431 Request Header Fields Too Large  The server is unwilling to process the request because either an individual header field, or all the header fields collectively, are too large.

431 Request Header Fields Too Large
The server is unwilling to process the request because either an individual header field, or all the header fields collectively, are too large.

444 No Response

444 No Response  Used in Nginx logs to indicate that the server has returned no information to the client and closed the connection.

444 No Response
Used in Nginx logs to indicate that the server has returned no information to the client and closed the connection.

450 Blocked by Windows Parental Controls

450 Blocked by Windows Parental Controls  A Microsoft extension.

450 Blocked by Windows Parental Controls
A Microsoft extension.

500 Internal Server Error

500 Internal Server Error  A generic error message, given when no more specific message is suitable.

500 Internal Server Error
A generic error message, given when no more specific message is suitable.

502 Bad Gateway

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

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

503 Service Unavailable

503 Service Unavailable  The server is currently unavailable.

503 Service Unavailable
The server is currently unavailable.

506 Variant Also Negotiates

506 Variant Also Negotiates  Transparent content negotiation for the request results in a circular reference.

506 Variant Also Negotiates
Transparent content negotiation for the request results in a circular reference.

507 Insufficient Storage

507 Insufficient Storage  The server is unable to store the representation needed to complete the request.

507 Insufficient Storage
The server is unable to store the representation needed to complete the request.

508 Loop Detected

508 Loop Detected  The server detected an infinite loop while processing the request.

508 Loop Detected
The server detected an infinite loop while processing the request.

509 Bandwidth Limit Exceeded

509 Bandwidth Limit Exceeded  This status code, while used by many servers, is not specified in any RFCs.

509 Bandwidth Limit Exceeded
This status code, while used by many servers, is not specified in any RFCs.

599  Network connect timeout error

599  Network connect timeout error  This status code is not specified in any RFCs, but is used by Microsoft Corp.

599 Network connect timeout error
This status code is not specified in any RFCs, but is used by Microsoft Corp.

Thanks.. Hope you Enjoy.. :)

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