HTTP Status Codes Cheat Sheet

A Programming › HTTP cheat sheet in English by kstep

HTTP Status Codes

Development Apache Web Code Server HTTP Status Error

338,804 views 62,643 downloads 24 Jan 2012 History

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1xx: HTTP Informational Codes

100	Continue
101	Switching Protocols
102	Processing ^WebDAV
103	Checkpoint ^{draft POST PUT}
122	Request-URI too long ^IE7

2xx: HTTP Successful Codes

200	OK
201	Created
202	Accepted
203	Non-Authoritative Information ^1.1
204	No Content
205	Reset Content
206	Partial Content
207	Multi-Status ^{WebDAV 4918}
208	Already Reported ^{WebDAV 5842}
226	IM Used ^{3229 GET}

3xx: HTTP Redirection Codes

300	Multiple Choices
301	Moved Permanently
302	Found
303	See Other ^1.1
304	Not Modified
305	Use Proxy ^1.1
306	Switch Proxy ^unused
307	Temporary Redirect ^1.1
308	Permanent Redirect ⁷⁵³⁸

307 and 308 are similar to 302 and 301, but the new request method after redirect must be the same, as on initial request.

4xx: HTTP Client Error Code

400	Bad Request
401	Unauthorized
402	Payment Required ^res
403	Forbidden
404	Not Found
405	Method Not Allowed
406	Not Acceptable
407	Proxy Authentication Required
408	Request Timeout
409	Conflict
410	Gone
411	Length Required
412	Precondition Failed
413	Request Entity Too Large
414	Request-URI Too Long
415	Unsupported Media Type
416	Requested Range Not Satisfiable
417	Expectation Failed
418	I'm a teapot ²³²⁴
422	Unprocessable Entity ^{WebDAV 4918}
423	Locked ^{WebDAV 4918}
424	Failed Dependency ^{WebDAV 4918}
425	Unordered Collection ³⁶⁴⁸
426	Upgrade Required ²⁸¹⁷
428	Precondition Required ^draft
429	Too Many Requests ^draft
431	Request Header Fields Too Large ^draft
444	No Response ^nginx
449	Retry With ^MS
450	Blocked By Windows Parental Controls ^MS
451	Unavailable For Legal Reasons ^draft
499	Client Closed Request ^nginx

5xx: HTTP Server Error Codes

500	Internal Server Error
501	Not Implemented
502	Bad Gateway
503	Service Unavailable
504	Gateway Timeout
505	HTTP Version Not Supported
506	Variant Also Negotiates ²²⁹⁵
507	Insufficient Storage ^{WebDAV 4918}
508	Loop Detected ^{WebDAV 5842}
509	Bandwidth Limit Exceeded ^nostd
510	Not Extended ²⁷⁷⁴
511	Network Authentication Required ^draft
598	Network read timeout error ^nostd
599	Network connect timeout error ^nostd

HTTP Code Comments

^WebDAV	WebDAV extension
^1.1	HTTP/1.1
^{GET, POST, PUT, POST}	For these methods only
^IE	IE extension
^MS	MS extension
^nginx	nginx extension
^{2518, 2817, 2295, 2774, 3229, 4918, 5842}	RFC number
^draft	Proposed draft
^nostd	Non standard extension
^res	Reserved for future use
^unused	No more in use, deprecated

Wikipedia was used to produce all HTTP codes content:
http://en.wikipedia.org/wiki/HTTP_status

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Comments (10)

managedkaos 18:50 4 Jun 2015

Nice sheet! My only suggestion would be to put the code category (1xx, for example) on the left of the header vs the right. Scanning for categories is faster that way instead of having to read the entire header. Not really a big deal in all, but just a suggestion! Thanks for this great sheet.

kstep 16:39 1 Jul 2016

Good advice, thank you! I've taken it into account.

Gokhan E. 14:28 14 Apr 2015

HTTP 308 Permanent Redirect => https://tools.ietf.org/html/draft-reschke-http-status-308-00

kstep 16:38 1 Jul 2016

Thank you for noticing this mistake, I fixed it.

Adam 09:44 10 Feb 2015

Why two pages? It would easily fit onto 1 page

DaveChild 10:06 10 Feb 2015

Hi Adam. Well spotted. Yes, this should fit on to one page. I've had a look at the PDF generation system and corrected a bug with it, and this will now be a bit more accurate.

kstep 16:48 18 Mar 2013

Update: code 451 (unavailable for legal reasons), see http://tools.ietf.org/html/draft-tbray-http-legally-restricted-status-00.

Martijn Oud 12:39 26 Jan 2012

I should hang this on my fridge haha :). Thanks!

DaveChild 17:07 24 Jan 2012

Great cheat sheet, kstep! Very handy!

kstep 11:18 11 Jan 2012

Note to self: review content in accordance with http://en.wikipedia.org/wiki/List_of_HTTP_status_codes and RFCs.