How Google uses speed in ranking
Google's documentation says its core ranking systems look at page experience, and that Core Web Vitals are part of it. It also says there is no single page experience signal, and that good scores alone do not guarantee a top position.
In practice speed works like a tiebreaker. When two pages answer a search equally well, the one that loads and responds well has the edge.
Which speed measures Google uses
Google scores these from real Chrome visits, not from the 0 to 100 PageSpeed number. The lab score helps you find problems; the real-visit results are what Google uses.
| Measure | What it checks | Good |
|---|---|---|
| Largest Contentful Paint | How fast the main content shows | 2.5 seconds or less |
| Interaction to Next Paint | How fast the page answers a tap | 200 milliseconds or less |
| Cumulative Layout Shift | How much the page jumps while loading | 0.1 or less |
Google ranks the phone version of your site
Google indexes and ranks the mobile version of a site's content. For a dealership that means the phone experience of your vehicle and inventory pages is the one being judged, even if the site looks fast on a desktop in the showroom. More on why sites are slow on phones.
Where speed costs a dealership most
- Vehicle pages from search. These are the pages that rank for model and trim searches, and most of those visits are on phones.
- Pages that move while loading. Layout shift is the measure dealership sites fail most in our Index.
- Pages slowed by tools. Chat, trade-in and tracking code starting up at once delay both loading and taps. See third-party scripts.
What to do about it
Check your Core Web Vitals in Search Console or run a page through the free speed test. Fix what fails, then keep writing pages that answer what shoppers search. Site Speed Engine takes care of the tools part on every page: the vehicle and the price load first, and everything else right after.