Loading Now

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.

My name is Skylar Pearce, I have been working as a System Administror since 2013 as well some side consulting work. During my career I have worked with everything from Active Directory and vCenter to configuring routers and switches and phone systems, documenting and scripting my way through the whole thing. I have a Security+ certification and am currently working on my PenTest+. Throughout my career I have gained almost all of my knowledge from blogs like this. It is now time for me to pay it back. Over time I have gathered scripts and tricks over the years that I will share on this site. A lot of the posts here will be mainly reference posts, some will be full on how to’s. I am happy to go into more depth on any other topics I go over here, just make a comment on a post. I will do my best to post once a day on weekdays but as I run out of ideas it may slow down. My WordPress skills are still growing so the site will likely get better over time as I learn. You can reach me at contact@allthesystems.com or on LinkedIn