HTTP cheat sheet

HTTP Request-Methods

Request Method	Explanation
GET	This requests a representation of the target source. They usually retrieve data.
HEAD	This is almost identical to the GET request, but it tells the server just to send the headers, without the response body.
POST	This is often used in submit formulas, the client usually sends data to the webserver.
PUT	This will upload a resource to the webserver.
OPTIONS	This returns the HTTP methods the server supports.
DELETE	This deletes a resource on the webserver.
TRACE	This method outputs the received request so the client can see if there was a change by intermediate servers.
CONNECT	Converts the request connection to a transparent TCP/IP tunnel
PATCH	Applies partial modifications to a resource

Status-Code	Explanation
1xx	Informational response This tells the client that his initial request was received and understood but the client needs to wait for a final response.
2xx	Success The client’s request was received, understood and accepted by the webserver
3xx	Redirection The client needs to request another target to complete the request.
4xx	Client errors This indicates that the client likely caused the issue. That doesn’t mean there is nothing wrong on the web server, but instead that the resource the client has requested can’t be delivered.
5xx	Server errors This indicates that the server has encountered an error when processing the client’s request.

Status-Code	Reason
100	Continue
101	Switching Protocols
102	Processing
103	Early Hints
200	OK
201	Created
202	Accepted
203	Non-Authoritative Information
204	No Content
205	Reset Content
206	Partial Content
207	Multi-Status
208	Already Reported
226	IM Used
300	Multiple Choices
301	Moved Permanently
302	Found (Previously “Moved temporarily”)
303	See Other
304	Not Modified
305	Use Proxy
306	Switch Proxy
307	Temporary Redirect
308	Permanent Redirect
400	Bad Request
401	Unauthorized
402	Payment Required
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	Payload Too Long
414	URI Too Long
415	Unsupported Media Type
416	Range Not Satisfiable
417	Expectation Failed
418	I’m a teapot
421	Misdirected Request
422	Unprocessable Entity
423	Locked
424	Failed Dependency
425	Too Early
426	Upgrade Required
428	Precondition Required
429	To Many Requests
431	Request Header Fields Too Large
451	Unavailable For Legal Reasons
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
507	Insufficient Storage
508	Loop Detected
510	Not Extended
511	Network Authentication Required

Updated on 3. July 2020