HTTP Status Code Lookup
Reference guide for all HTTP status codes and their meanings.
Use Cases
Web Development
Understand HTTP status codes returned by APIs and servers.
Debugging
Quickly look up error codes when troubleshooting requests.
API Testing
Verify correct status codes in API responses.
Learning
Understand HTTP standards and response codes.
How to Use
- Enter Code: Type or select an HTTP status code (e.g., 404)
- Search: Tool displays instant matching results
- Read Description: Understand what the code means
- Learn Causes: See common reasons for that status
How It Works
- Code Recognition: Identifies numeric or text status codes
- Instant Lookup: Real-time search as you type
- Detailed Explanations: Full description of each status
- Category Organization: Grouped by code family (1xx, 2xx, etc)
- Common Causes: Lists typical reasons for each status
- Quick Reference: Browse all codes by category
Frequently Asked Questions
What does each status code number range mean?
1xx = informational, 2xx = success, 3xx = redirect, 4xx = client error, 5xx = server error.
Is 404 the most common error?
Yes, 404 (Not Found) is very common, but 403 (Forbidden) and 500 are also frequent.
What's the difference between 301 and 302 redirects?
301 is permanent redirect; 302 is temporary redirect.
Can I see all status codes at once?
Yes, scroll through the full list or filter by category.
Are there custom status codes?
No, HTTP status codes are standardized by RFC specifications.