Website page speed is a fundamental part of user experience and used as a increasingly important factor in Search Engine Optimisation.
Google have even created a online speed test called Pagespeed Insights which developers can use to help them speed up their websites.
On this website blog you will find the information you need to improve your website speed and hopefully get that perfect 100% score for both mobile and desktop versions of your website.
PageSpeed Insights (PSI) reports on the performance of a page on both mobile and desktop devices, and provides suggestions on how that page may be improved.
PSI provides both lab and field data about a page. Lab data is useful for debugging performance issues, as it is collected in a controlled environment. However, it may not capture real-world bottlenecks. Field data is useful for capturing true, real-world user experience – but has a more limited set of metrics
In 2019 google added many factors to how they calculate the page speed insights score and now uses ‘Lighthouse’ to collect and analyse site data
Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO and more.