HTTP Response Timer – Measure URL Load Time and Headers Instantly
HTTP Response Timer
HTTP Response Timer is a browser-based tool that allows sysadmins, web developers, and SREs to measure the response time of any URL using GET or HEAD requests.
Why Use This Tool?
Whether you’re debugging slow APIs or validating uptime across microservices, knowing how quickly your endpoints respond is essential. This fast-loading tool gives you:
- ⏱️ Instant latency timing in milliseconds
- 📬 Full HTTP headers returned by the server
- 📡 No backend, fully local in-browser processing
Start Using Now
Launch the HTTP Response Timer to test your endpoints in real time using your browser.
Related Tools
Learn more about how HTTP works via the Fetch API on MDN or see the HTTP status code list.


