What is the difference between 401 and 403?
401 Unauthorized means authentication is required or failed; 403 Forbidden means authenticated user lacks sufficient permission.
How to Use HTTP Status Code Reference
Step 1: Search or Filter
Type any code (e.g. 403) or category (4xx Client Error, 5xx Server Error).
Step 2: Review RFC Specification
Inspect standard definitions, common scenarios, and server recommendations.
Step 3: Copy Code & Definition
Copy status definitions for API documentation.
Key Features & Capabilities
- Instant search across 60+ IETF RFC HTTP status codes
- Clear categorizations: 1xx Informational, 2xx Success, 3xx Redirection, 4xx Client Error, 5xx Server Error
- Includes practical debugging recommendations for developers
Specifications & Limits
- Batch Processing: Single Item
- Free Tier Limit: Comprehensive HTTP reference directory
Frequently Asked Questions
What is the difference between a 301 and 302 redirect?
A 301 is a permanent redirect that transfers SEO ranking equity, whereas a 302 is a temporary redirect.
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