If you weren’t already focused on your mobile site’s performance, Google is giving you a reason. In July of 2018, Google will use a new ranking signal focused purely on mobile site speed: the “Speed Update.”

Google will dampen rankings for slower mobile sites to help mobile searchers find sites that deliver what Google considers to be a better mobile experience.

Desktop site speed has been a Google ranking factor for almost eight years — Google’s obsession with speed isn’t anything new. What is new is that Google will now include mobile sites in the site speed ranking equation.

Google will use the Speed Update to measure all mobile pages, whether they’re on a dedicated or a responsive site. (However, the Speed Update, reportedly, will be a smaller ranking factor than contextual relevance to the searcher’s query.) Google says the Speed Update “will only affect pages that deliver the slowest experience to users and will only affect a small percentage of queries.”

Shoppers Expect Speed

To underscore the importance of speed, the search giant trotted out some eye-opening statistics. For example, Google’s research shows that as page load time increases from 1 to 10 seconds, the probability of the visitor bouncing out of the site increases 123 percent.

Page speed impacts bounce rates. Adding just 2 seconds — from 1 second to 3 seconds — increases bounce rates by 32 percent. Adding 9 seconds — from 1 second to 10 seconds — increases bounces by 123 percent. <em&gtSource: Google/SOASTA Research, 2017.</em>
Page speed impacts bounce rates. Adding just 2 seconds — from 1 second to 3 — increases bounce rates by 32 percent. Adding 9 seconds — from 1 second to 10 — increases bounces by 123 percent.

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