Lightweight live response time in your Google Chrome browser.
The extension checks the current site through SiteAlive, shows the response time in milliseconds, and lets users click through for more details on SiteAlive.
How it works
When you open a website, the extension reads the current hostname.
It sends a lightweight request through SiteAlive to check how quickly that site is responding.
The popup shows the response time in milliseconds so you can spot slow behavior fast.
If you want more context, one click takes you to the SiteAlive page for deeper details.
Extension package
The Chrome extension source files are included in this project in the chrome-extension folder, making it easy to package, review, and publish the extension separately when you are ready.
See the extension in context
This preview shows how the SiteAlive Google Chrome extension appears while you browse, giving you a quick, lightweight way to check response time without leaving the page you are on.
Get a fast performance signal while browsing normally.
Jump to deeper diagnostics only when you need more detail.
A faster way to understand why a website feels slow
Sometimes a website feels off before it is fully down. A page hangs for a second longer than usual, a checkout stalls, or a dashboard loads with a strange delay. That is exactly the kind of moment where a simple response time view is helpful. Instead of guessing whether the problem is your connection or the site itself, you get a quick signal right in the browser.
The SiteAlive Google Chrome extension is built for that small but important moment. It gives you a lightweight read on the site you are already visiting, without forcing you into a heavy workflow. If you just want a quick answer, you have it. If you want more context, you can jump into SiteAlive and look deeper.
This makes it useful for more than technical teams. Site owners can spot a slowdown while browsing their own product. Support teams can sanity-check a customer report. Marketers can see when a landing page feels unusually sluggish. Even everyday users can get a better sense of whether a site is behaving normally.
Why response time still matters
Website response time is one of the clearest early signals of real performance. Long before users describe a site as broken, they usually describe it as slow, laggy, or inconsistent. Those small delays affect trust. They also affect conversions, support volume, and how people feel about your product.
That is why having a quick browser-based view inside Google Chrome can be so practical. It keeps performance visible during normal browsing, not only inside dashboards and reports. You do not need to stop what you are doing to run a full test every time something feels suspicious.