HTTP Status Codes reference data
Complete reference of HTTP response status codes.
Datasets in HTTP Status Codes
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CORS (Cross-Origin Resource Sharing) Guide
Complete CORS reference: preflight requests, Access-Control headers, credentials, wildcard policies, and common pitfalls.
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Complete HTTP Status Codes Reference
Complete reference of all HTTP status codes organized by class: 1xx informational, 2xx success, 3xx redirection, 4xx client error, 5xx server error.
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HTTP Authentication Methods
HTTP authentication schemes: Basic, Bearer (JWT), Digest, OAuth 2.0, Mutual TLS, and modern alternatives like WebAuthn and passkeys.
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HTTP Caching: Complete Guide
HTTP caching strategies: Cache-Control directives, ETag/Last-Modified validation, CDN caching, stale-while-revalidate, and browser cache behavior.
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HTTP Client Error Status Codes (4xx)
Guide to 4xx client error responses: when to use 400 vs 401 vs 403 vs 404 vs 429, proper error responses, and user experience.
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HTTP Content Negotiation
HTTP content negotiation: Accept, Accept-Language, Accept-Encoding, Accept-Charset headers, content type selection, and server-driven vs agent-driven negotiation.
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HTTP Methods Reference
Standard HTTP request methods: GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS, TRACE with safety, idempotency, and body characteristics.
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HTTP Redirect Status Codes (3xx)
Comprehensive guide to HTTP 3xx redirect codes: when to use 301 vs 302 vs 307 vs 308, SEO implications, and browser behavior.
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HTTP Server Error Status Codes (5xx)
Guide to 5xx server error responses: diagnosing 500, 502, 503, 504 errors, retry strategies, and monitoring.
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HTTP Status Code Best Practices
Guidelines for proper HTTP status code usage in REST APIs: when to use each code, common mistakes, and industry conventions.
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