Google today announced a new ranking algorithm designed for mobile search. The company is calling it the “Speed Update,” and it will only impact a small percentage of queries, Google reiterated to us. Only pages that “deliver the slowest experience to users” will be impacted by this update, the company says.

The update goes live in July 2018, so webmasters have time to prepare their webpages.

Google recommends you use the new updated PageSpeed report and tools like LightHouse to measure page speed and make improvements.
The issue with the PageSpeed Insights report is that, because it’s using data from the Chrome Browser, it doesn’t have enough data to reliably measure smaller sites, so the speed portion of the report is unavailable for those users. Optimization scores are still available, but that’s not enough to allow sites to tell if they have slow pages or not.

Back in 2010, Google said page speed was a ranking factor but it “was focused on desktop searches” only. Now, in July 2018, it will look at how fast your mobile pages are and use that as a ranking factor in mobile search. Google has been promising to look at mobile page speed for years now, and it is finally coming.