Core Web Vitals

Core Web Vitals for car dealership websites

Core Web Vitals are Google's three measures of how a page feels to real visitors: how fast the main content shows (LCP), how fast a tap gets a response (INP), and how much the page jumps (CLS). A page passes when at least three quarters of real visits are in the good range on all three.

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The three measures and their passing scores

Google's Core Web Vitals thresholds, at the 75th percentile of real visits
Measure	What it means on a dealer page	Good	Poor
Largest Contentful Paint	The main vehicle photo or banner appears	2.5 s or less	Over 4 s
Interaction to Next Paint	A filter, gallery arrow or button responds to a tap	200 ms or less	Over 500 ms
Cumulative Layout Shift	Prices and buttons stay put while the page loads	0.1 or less	Over 0.25

Google's Core Web Vitals thresholds: Largest Contentful Paint good at 2.5 seconds or less, Interaction to Next Paint good at 200 milliseconds or less, Cumulative Layout Shift good at 0.1 or less.

Most dealership websites fail

In the Auto Dealer Site Speed Index, 15 of 140 dealership websites passed all three on both mobile and desktop. On phones, layout shift was the most common failure: 109 of 137 sites were outside the good range, against 44 for loading.

Where the numbers come from

Google collects them from real Chrome visitors over a rolling 28 days (the Chrome UX Report). You can see yours in PageSpeed Insights, in Search Console's Core Web Vitals report, or in our free speed test. A fix shows up gradually, as new visits replace old ones over those 28 days.

Do Core Web Vitals affect SEO?

Yes, as one signal among many. Google says Core Web Vitals are used by its ranking systems, and that good scores do not guarantee a top ranking on their own. Relevant, useful content still matters more. More on website speed and SEO.

What fixes them on a dealer site

Reserve space for photos and late banners (layout shift), size the main photo for the screen (loading), and stop tools from running while the shopper taps (response). Site Speed Engine handles the tools part on every page: the vehicle and price load first, chat and tracking right after.

Sources

Questions

Why did my Core Web Vitals assessment fail?

At least one of the three measures is outside Google's good range at the 75th percentile, so a quarter or more of real visits miss the mark. PageSpeed Insights shows which one; on dealer sites it's most often layout shift or tap response on mobile.

How do I pass the Core Web Vitals assessment?

Get all three measures into the good range at the 75th percentile of real visits, on the device type being assessed. Fix the failing measure first, then wait for the 28-day data to catch up.

How long until a fix shows up in Core Web Vitals?

Up to 28 days. Google's data covers the last 28 days of visits, so each day of better visits replaces a day of old ones.

Does mobile or desktop matter more for Core Web Vitals?

Google assesses them separately. For dealerships, mobile is the harder one to pass: in our Index, 20 of 137 sites passed on mobile against 28 on desktop.

How many Core Web Vitals are there?

Three: Largest Contentful Paint for loading, Interaction to Next Paint for response to taps, and Cumulative Layout Shift for stability.

Where do I find Core Web Vitals in Google Search Console?

Under Experience, then Core Web Vitals. It groups your pages as good, needs improvement or poor, separately for mobile and desktop, and shows which pages share a problem.

Why are Core Web Vitals important for a dealership?

Core Web Vitals measure what shoppers feel: how fast the car shows, how fast the page answers a tap, and whether the price stays put. Google uses them in ranking, and a slow page loses visits your ads already paid for.

What is Core Web Vitals optimization?

Changing a site until all three measures pass. On a dealer site that means reserving space for photos and banners, sizing photos for phones, and keeping tools from running while the page loads, which Site Speed Engine does automatically.