HTTP Status Codes Reference

Complete guide to HTTP response codes. Learn what 100, 200, 300, 400, and 500 codes mean and how to fix common errors.

1xx Info 2xx Success 3xx Redirect 4xx Client Error 5xx Server Error
1xx

Informational Responses

Request received, continuing process
2xx

Success Codes

Request successfully received and processed
3xx

Redirect Codes

Further action needed to complete request

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4xx

Client Error Codes

Error caused by the client request
5xx

Server Error Codes

Server failed to fulfill valid request
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