How to use it
- Search for an HTTP code or error text.
- Filter by one of the 1xx–5xx classes.
- Review the meaning, common cause and suggested checks.
Developer reference
HTTP Status Code Guide
Find what 200, 404, 500 and other HTTP responses mean, and quickly identify whether an issue is client-side or server-side.
Search codes-
1xx Information
2xx Success
3xx Redirection
4xx Client error
5xx Server error
Practical guide
Find the meaning and likely fix for an HTTP response code
Search common HTTP codes from 1xx to 5xx by code, name or description and review causes and troubleshooting steps for client and server errors.
What is an HTTP Status Code Guide?
This tool streamlines workflows such as debugging api integration errors and interpreting nginx or gateway responses in one place.
Common uses
- Debugging API integration errors
- Interpreting Nginx or gateway responses
- Distinguishing authentication issues
- Checking redirect and SEO status
Practical examples
401 means authentication is required, while 403 means the known identity lacks permission.
502 indicates an invalid upstream response, while 504 indicates an upstream timeout.
Both are permanent; 308 explicitly preserves the HTTP method.
Frequently asked questions
Is every successful response 200?
No. Use 201 for creation, 204 for an empty success and 206 for partial content.
What should I do after a 429?
Honor Retry-After and use exponential backoff, caching or queues.
Can a 500 error be fixed on the client?
Server logs usually need inspection, though a malformed payload may trigger a server bug.
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