What is HTTP Debugging?
HTTP debugging lets you inspect the full lifecycle of an HTTP request. You can see how a URL responds, which redirects it follows (301, 302, 307, etc.), what headers the server sends back, the TLS/SSL protocol in use, and how long each step takes. This is essential for troubleshooting SEO issues, caching problems, and security misconfigurations.
Why do redirect chains matter?
Redirect chains affect page load speed and SEO rankings. Each redirect adds latency and can dilute link equity. Search engines may also stop following chains after too many hops. Ideally, you should have at most one redirect between the requested URL and the final destination.
Performs HTTP requests analyzing response headers, status codes, redirects, and content for debugging APIs and troubleshooting web applications.
Key Facts
- HTTP/2 used by 65% of top 10M sites
- Most common status code: 200 OK
- Redirect chains should not exceed 3 hops for SEO
- HTTP/3 uses QUIC instead of TCP
Frequently Asked Questions
What are HTTP status codes?
2xx=success, 3xx=redirect, 4xx=client error, 5xx=server error. 200 OK, 301 Moved, 404 Not Found, 500 Error.
301 vs 302 redirect?
301 permanent (transfers SEO). 302 temporary (original URL stays indexed).
How to check URL redirects?
Use this tool to follow redirect chain. 3xx status with Location header indicates redirect.