How the test works
The PageLr Screenshot is captured freshly on our servers on every compare.
The web page is loaded in an iFrame element locally in your browser, if you compare a page which you have already visitied your browser likely has all or parts of the page cached, and will load much faster as no or few resources will be loaded from remote web servers over the network.
Some web pages are setup so they does not allow them to be loaded in an iframe, usually they show an error or similar instead.
The timers trigger when screenshot is received from api.pagelr.com and when the 'onload' event fires for the page in the frame.
Results
For best result make sure the page you compare with is not cached in the browser. Delete your temporary internet files, or empty the browser cache.
