The application allows you to examine every aspect of loading a web page (HTML, javascript, CSS…), to analyze the size in relation to the domain, the number of requests and the type of content retrieved. It allows you to perform the analysis from California, Texas, Australia and Sweden.
PageSpeed Insights is Google's benchmark tool for measuring the chinese singapore phone number list loading speed of a website .
The tool allows us to highlight the issues that affect speed, and as a result offers a score from 1 to 100 on the loading of a website in both the desktop and mobile versions (making a request for each version).
Even when it is not able to return real-time results, it offers useful suggestions for making optimizations.
In particular:
indicates render-blocking javascript and CSS resources in above-the-fold content that delay page rendering
leverage browser caching to retrieve resources locally instead of over the network
check the display priority of above-the-fold content
check if redirects to landing pages are avoided
offers tips on image optimization
check if the HTML code is minified
check if gzip compression is enabled and if the server responds quickly
GTMetrix
GTMetrix provides useful indications on how to improve the loading speed of the site , it returns the evaluation of the PageSpeed and YSlow parameters according to an increasing score from F to A.
Among other things, check performance depending on connection type, any delays in video playback, whether AdBlock ads affect loading speed.