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What is HTTP Status code ? List of Codes with Easy Explanation

HTTP Status code : It is code that express meaning of responses from the server. When computers are communicating with each other. It is three numerical digits. Each code gives different meaning and use for particular purpose. Learn how to implement each of them practically to have complete insight about each of HTTP Status code. 

1XX. It indicates the provisional response. It wants requester ( one who requests ) to take action and continue. 2xx ( Successful ) : It indicates the service processed the request successfully. 3xx ( Redirected) 4xx ( Request error) 5xx ( server error). It indicates error is with the server not with the request.

For Example : HTTP Status Code 404 –> Not Found ( Server through this message when requested source not available).

HTTP Status Code

List of HTTP Status Code

In SEO, Generally for broken links, 404 error  page appears. We will share article in future about how to optimize 404 Page as per Search engine optimization guidelines.

503 : Service not available 400 : Bad request. 502 bad gateway

List of HTTP Status Code with Meaning and Description

HTTP Status code  Meaning and Description 
100 Continue
101 Switching Protocols
102 Processing
103-199 These are Unassigned
HTTP Status Code 200 OK
201 Created
HTTP Status Code 202 Accepted
203 Non-Authoritative Information
204 No Content
205 Reset Content
HTTP Status Code 206 Partial Content
207 Multi-Status
208 Already Reported
209-225 These are Unassigned
226 IM Used
227-299  These are Unassigned
300 Multiple Choices
HTTP Status Code 301 Use to Moved Permanently ( Very Important in Online Marketing)
HTTP Status Code 302 Found
303 See Other
304 Not Modified
305 Use Proxy
306 (Unused)
307 Temporary Redirect
308 Permanent Redirect
309-399 Unassigned
HTTP Status Code 400 Bad Request
HTTP Status Code 401 Unauthorized
402 Payment Required
403 Forbidden
HTTP Status Code 404 Page Not Found ( Very important for websites)
HTTP Status Code 405 Method Not Allowed
406 Not Acceptable
407 Proxy Authentication Required
408 Request Timeout
409 Conflict
HTTP Status Code 410 Gone
411 Length Required
412 Precondition Failed
413 Payload Too Large
414 URL Too Long
415 Unsupported Media Type
416 Requested Range Not Satisfiable
417 Expectation Failed
422 Un-process able Entity
423 Locked
424 Failed Dependency
425 Un ordered selection
426 Upgrade Required
427 Too many requests
428 Precondition Required
429 Too Many Requests
430 Unassigned
431 Request Header Fields Too Large
444  No Response
450   Blocked by windows parental controls
451  Un Available for legal reasons
494  It means Request is too large
HTTP Status Code 500 Internal Server Error
501 Not Implemented
502 Bad Gateway
HTTP Status Code 503 Service Unavailable
504 Gateway Timeout
505 HTTP Version Not Supported
506 Variant Also Negotiates (Experimental)
507 Insufficient Storage
508 Loop Detected
509 Bandwidth Limit exceed
510 Not Extended
511 Network Authentication Required
512-599  These codes are also Unassigned. May be reserved for future use.

If your work on Practically on HTTP Status code, then you will have clear understanding. Learn about various HTTPs codes and their uses in real time. Work on various scenarios for effective implementation. First learn about important one’s. If you are blogger, then it is highly recommended to know about commonly appearing codes. As it is very important to optimize your site weel. 

Later on you can proceed on other codes. I Hope you got easy understanding on list of HTTP codes. 

Don’t forget to share your valuable suggestions here. Feedback will be taken into consideration. 

Updated: June 1, 2018 — 11:01 pm

1 Comment

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  1. Wow. Good information onn HTTP Status Code

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