Google has released new guidelines and an updated PageSpeed Insights tool that will improve the rendering performance of mobile pages. Most of the users find it more convenient to perform data/information search on their smartphones. However, an average mobile page takes more than 7 seconds to load. The recent release will help webmasters in optimizing their mobile pages so that they load in under one second.
Research by Nielsen Norman Group shows that the flow of users gets interrupted if a page takes more than one second to load. Therefore, the new guidelines from Google will focus on rendering above-the-fold content in one second to keep the visitors engaged. Rest of the page will continue to load in the background. The HTML, CSS, and JS above-the-fold is called as critical rendering path.
Google has also specified a few practices that will help in achieving sub-second rendering on mobile networks:
- Minimize the number of redirects
- Minimize the number of roundtrips to first render
- The server rendering response should be in less than 200ms
- The reserve time for browser layout and rendering should be 200ms
The above discussed points are explained in more details in the mobile-specific help pages.Google Introduces Guidelines & PageSpeed Insights Tool to Improve Site Load Time in Smartphones!,