This article lists standard and notable non-standard HTTP response status codes. Standardized codes are defined by IETF as documented in Request for Comments (RFC) publications and …

Jan 5, 2026 · HTTP response status codes indicate whether a specific HTTP request has been successfully completed. Responses are grouped in five classes:

This comprehensive HTTP status codes reference guide covers all standard codes with detailed explanations, RFC references, real-world examples, best practices, common mistakes to …

Dec 26, 2025 · HTTP status codes: Master every error code from 404 to 500. Complete list with fixes, meanings, and SEO impact to optimize your website performance.

Mar 24, 2025 · HTTP status codes provide essential information about how a request was processed. Below is a breakdown of all major codes, their meanings, and troubleshooting tips …

An overview of the most common HTTP status codes returned by the server to client software to determine the outcome of a request.

Sep 2, 2025 · HTTP status codes are standardized three-digit numbers that a web server sends in response to a browser’s request, indicating whether the request was successful, resulted in an …

Jul 3, 2025 · Understand what HTTP status codes are, their categories, where they’re used, and how to simulate them for testing web and API error scenarios.

HTTP Status Code directory, with definitions, details and helpful code references.

Nov 3, 2025 · Explore the most common HTTP status codes, review their meanings, and learn some best practices for implementing them.