AIMentions.today
Free SEO Tool

Free HTTP Status Code Checker

Check any URL's HTTP status code, detect redirect chains, and measure response time for SEO optimization.

Enter the full URL including https:// to analyze the page

What are HTTP Status Codes?

HTTP status codes are three-digit numbers returned by servers to indicate the result of a request. They tell you whether a page loaded successfully, redirected, or encountered an error.

Common Status Codes

2xx - Success

200 OK - Request successful, page loaded

3xx - Redirection

301 - Permanent redirect, 302 - Temporary redirect

4xx - Client Error

404 - Not found, 403 - Forbidden

5xx - Server Error

500 - Internal server error, 503 - Service unavailable

Why Status Codes Matter for SEO

  • 4xx Errors: Pages with 404 errors won't be indexed
  • 5xx Errors: Server errors can cause deindexing if persistent
  • Redirect Chains: Multiple redirects slow down crawling and page speed
  • 3xx Status: Redirects pass link equity but add latency
  • Response Time: Slow responses hurt rankings and user experience