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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