URL Checker & Redirect Follower
Verify URLs, follow redirect chains, and check security/metadata
Check URL
Check HTTP status codes, redirect chains, response headers, and SSL certificate status for any URL. Instantly diagnose broken links, redirect loops, and misconfigured headers.
HTTP Status Codes, Redirect Chains, and Response Header Analysis
HTTP status codes are three-digit codes that web servers return in response to every request, grouped by category: 1xx (informational), 2xx (success: 200 OK, 201 Created), 3xx (redirection: 301 Moved Permanently, 302 Found, 307 Temporary Redirect), 4xx (client error: 400 Bad Request, 403 Forbidden, 404 Not Found), and 5xx (server error: 500 Internal Server Error, 503 Service Unavailable).
Redirect chains — sequences of redirects from one URL to another — are common in production websites where URL structures evolve over time. Each redirect in a chain adds latency (an additional HTTP round trip), and excessively long chains (3+ hops) degrade performance. Redirect loops (A → B → A, or circular chains) cause browser errors and are a common misconfiguration in CDN and proxy setups.
Response headers carry critical operational information: Content-Type declares the media type and encoding, Cache-Control defines caching behavior, security headers like Content-Security-Policy and X-Frame-Options define browser security policies, and HSTS (Strict-Transport-Security) forces HTTPS. Our tool inspects all these elements in a single request so you can assess a URL's health comprehensively.
Diagnose broken links and 404 errors
Check specific URLs from an error log or crawler report to confirm status and identify what canonical URL should replace them.
Trace redirect chains
Follow all redirects from an old URL to its final destination to understand the full redirect path and count of hops.
Verify security header implementation
Check that Content-Security-Policy, HSTS, X-Frame-Options, and other security headers are present and correctly configured.
Validate SSL certificate status
Confirm an HTTPS URL's SSL certificate is valid, not expired, and correctly matches the domain.
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Enter the URL to check
Paste the full URL including the protocol (https:// or http://). The tool fetches the URL and inspects the response.
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View HTTP status and redirect chain
See the final HTTP status code, any intermediate redirects with their status codes, and the final destination URL.
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Inspect response headers
Browse the complete list of response headers including Content-Type, Cache-Control, security headers, and server information.
Full redirect chain tracing
Follows and displays every redirect hop — including 301, 302, 307, and 308 — showing status code and URL at each step.
Response header inspection
Displays all response headers in a clean list with highlighting for important security and caching headers.
SSL certificate validity
Checks SSL certificate expiration date, issuing CA, and whether the certificate matches the requested domain.
Response time measurement
Records the time-to-first-byte for the checked URL to give a basic performance indicator alongside status information.
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