app.telemetry as a Web Browser Plug-in!

Get the page load times of any web page! app.telemetry Page Speed Monitor shows offset and duration of each step during the page load based on W3C navigation timing. As soon as you access a page, you see the load time in the statusbar and detailed information is only a click away, e.g. Redirect, App cache, DNS lookup, TCP connection, TCP request, TCP response, Processing right up to the onload event.

The Page Speed Monitor is like app.telemetry Cloud to go!

Want to know what the metrics provided by our Firefox-add-on actually mean?


  • Redirect (URL-Redirection, URL-Forwarding)
    When your web browser attempts to open a URL that has been redirected, a page with a different URL is opened.

  • App cache (Browser cache)
    A mechanism for the temporary storage (caching) of resources.

  • DNS lookup
    The domain name is matched with the appropriate IP-Adress.

  • TCP connection
    Your devices establishes a connection via TCP.

  • TCP request
    The duration from the initial request to the first byte of the response.

  • TCP response
    The duration from the first byte of the response to the completion of the response.

  • Processing
    Your browser parses the HTML, CSS and synchronous Javascript.

  • onload event
    The page is fully loaded.