Deep-Dive HTTP response Status Code quick-check Table _php Tutorial

HTTP header Information Check URL http Server Response Code Checker

Common response Status Codes

1**: Request received, continue processing
2**: Successful operation received, analysis, acceptance
3**: Completion of this request must be further processed
4**: request contains an error syntax or cannot be completed
5**: The server failed to perform a fully valid request

100--customer must continue to make a request
101--client requires server to convert HTTP protocol version on request

200--Trading Success
201--prompt to know the URL of the new file
202--accepted and processed, but processing not completed
203--return information is indeterminate or incomplete
204--request received, but return information is empty
205--the server has completed the request, the user agent must reset the files that are currently viewed
206--server has completed a partial user's GET request

300--requested resources can be obtained in multiple places
301--Delete request data
302--found the request data at a different address
303--advising customers to access other URLs or access methods
304--client has performed a get, but the file has not changed
The resource requested by 305--must be obtained from the address specified by the server
306--code used in previous versions of HTTP, no longer used in the current version
307--declaring the requested resource temporary deletion

400--error requests, such as syntax errors
401--Request Authorization failed
402--reserved valid Chargeto header response
403--Request not allowed
404--no files, queries, or URLs found
405--the method defined by the user in the Request-line field does not allow
406--request resource is inaccessible based on accept drag sent by user
407--similar to 401, the user must first be authorized on the proxy server
408--client does not complete the request within the user-specified time of starvation
409--the current resource state, the request cannot be completed
This resource is no longer available on the 410--server and has no further reference address
411--server rejects user-defined Content-length property requests
412--one or more request header fields are incorrect in the current request
413--the requested resource is greater than the size allowed by the server
414--The requested resource URL is longer than the length allowed by the server
415--requesting a resource does not support requesting an item format
The 416--request contains a range request header field that does not have a range indication value within the current request resource, requesting
Also does not contain the If-range request header field
417--server does not meet the expected value specified by the request Expect header field, if it is a proxy server, it may be the next
A primary server does not meet the request

500--Server generates internal error
501--server does not support the requested function
502--server is temporarily unavailable, sometimes to prevent system overloads
503--server overload or pause repair
504--Gateway overload, Server uses another gateway or service to respond to users, waiting time setting value is longer
505--server does not support or deny the HTTP version specified in the request header

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