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 …

Oct 30, 2025 · HTTP response status codes indicate whether a specific HTTP request has been successfully completed. Responses are grouped in five classes:

Aug 9, 2024 · HTTP specification defines these standard status codes divided into five categories that can be used to convey the results of a client’s request.

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

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 …

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

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

Comprehensive list of all HTTP status codes (1xx, 2xx, 3xx, 4xx, 5xx) with clear explanations. Search, learn, and understand each HTTP response code's meaning and usage.

Complete list of HTTP status codes with detailed information, descriptions, and examples. Search and browse through all HTTP response codes.

This code indicates that the server has received and is processing the request, but no response is available yet. This prevents the client from timing out and assuming the request was lost.