SEO & Web

What Is HTTP Status Code?

HTTP status codes are three-digit server responses (like 200, 301, 404, 500) indicating how a request for a web page was handled.

Every time a browser or crawler requests a URL, the server answers with a three-digit status code. The first digit groups them: 2xx means success (200 OK), 3xx means redirection (301 permanent, 302 temporary), 4xx means client errors (404 not found, 403 forbidden, 410 gone) and 5xx means server errors (500, 503).

Status codes matter for SEO because crawlers act on them: 301s pass ranking signals, 404s drop pages from the index over time, and repeated 5xx errors can slow crawling of the entire site.

Free tools for http status code