By Aijaz Alam
What percentage of websites pass Core Web Vitals?
48% of mobile websites and 56% of desktop websites had good Core Web Vitals in 2025, according to the HTTP Archive Web Almanac, which uses Chrome UX Report data from real Chrome users. Google's own Chrome UX Report, which does not split by device in its monthly note, counted 55.9% of origins passing in September 2026.
- 48%Mobile websites with good Core Web VitalsHTTP Archive Web Almanac, 2025
- 56%Desktop websites with good Core Web VitalsHTTP Archive Web Almanac, 2025
- 62%Mobile pages with good loading speed (LCP), the weakest metricHTTP Archive Web Almanac, June 2025
- 55.9%Origins with good LCP, CLS and INP in Google's Chrome UX ReportChrome UX Report, September 2026 dataset
- 37%Top 100,000 mobile sites with good Core Web Vitals, the lowest rank groupHTTP Archive Web Almanac, 2025
The numbers
The full breakdown
Pages with a good score on each Core Web Vital (June 2025)
| Metric | Mobile | Desktop |
|---|---|---|
| Largest Contentful Paint (LCP), loading | 62% | 74% |
| Interaction to Next Paint (INP), responsiveness | 77% | 97% |
| Cumulative Layout Shift (CLS), visual stability | 81% | 72% |
| All three good (pass Core Web Vitals) | 48% | 56% |
HTTP Archive Web Almanac 2025, SEO chapter, figures 5.21 and 5.22, Chrome UX Report data. Good means LCP of 2.5 seconds or less, INP under 200 milliseconds and CLS of 0.1 or less for most real users.
Mobile websites with good Core Web Vitals, by popularity (2025)
| Websites | Good Core Web Vitals (mobile) |
|---|---|
| Top 1,000 | 51% |
| Top 10,000 | 42% |
| Top 100,000 | 37% |
| Top 1 million | 42% |
| Top 10 million | 49% |
| All websites | 48% |
HTTP Archive Web Almanac 2025, performance chapter, figure 7.2 (CrUX, July 2025). On desktop, 59% of the top 1,000 sites pass and the other groups stay between 55% and 57%. The chapter's text gives 48% for the top 10 million where the figure description gives 49%; the figure is used here.
Pages with good Core Web Vitals, home pages vs other pages (2025)
| Page type | Mobile | Desktop |
|---|---|---|
| Home pages | 45% | 47% |
| Secondary pages | 56% | 61% |
HTTP Archive Web Almanac 2025, performance chapter, figure 7.3, page-level CrUX data. Secondary pages often load faster because resources are already cached.
Origins with good Core Web Vitals in Google's Chrome UX Report, by dataset
| CrUX dataset | Origins covered | Good LCP | Good CLS | Good INP | Good on all three |
|---|---|---|---|---|---|
| September 2024 | 18,936,684 | 65.4% | 78.2% | 85.7% | 51.0% |
| March 2025 | 18,473,760 | 67.9% | 78.2% | 85.8% | 52.8% |
| July 2025 | 18,068,328 | 66.6% | 79.6% | 85.4% | 53.0% |
| September 2025 | 18,640,549 | 66.8% | 80.1% | 86.0% | 53.7% |
| December 2025 | 17,288,655 | 67.6% | 80.3% | 85.6% | 54.4% |
| March 2026 | 18,257,384 | 69.0% | 81.2% | 87.2% | 56.5% |
| June 2026 | 18,210,344 | 67.7% | 81.4% | 85.9% | 55.3% |
| September 2026 | 18,376,044 | 68.3% | 81.7% | 85.4% | 55.9% |
Google's monthly Chrome UX Report announcements (Chrome team). Origin level; the announcements do not split mobile and desktop, so these figures sit between the Web Almanac's mobile and desktop rates. Google says December data varies a lot every year, and an Android data issue affected some 2025 months. From September 2026, experimental figures that include soft navigations put the all-three rate at 59.5%.
Over time
Websites with good Core Web Vitals, 2021 to 2025
| Year | Mobile | Desktop |
|---|---|---|
| 2021 | 32% | 41% |
| 2022 | 31% | 44% |
| 2023 | 36% | 48% |
| 2024 | 44% | 55% |
| 2025 | 48% | 56% |
HTTP Archive Web Almanac, performance chapter, figure 7.1. INP replaced FID as the responsiveness metric in March 2024, so 2024 and 2025 use a stricter test than earlier years.
Why sources differ
Same question, different answers
| Number | When | Who measured | Why it differs |
|---|---|---|---|
| 48% mobile, 56% desktop | 2025 | HTTP Archive Web Almanac | Websites (origins) split by device, from Chrome UX Report data for mid-2025. |
| 55.9% | Sep 2026 | Google Chrome UX Report | All origins in the monthly dataset, devices not split in the announcement; a later month. |
| 62% good LCP | Jun 2025 | HTTP Archive Web Almanac | One metric only, mobile; passing needs all three. |
| 45% mobile home pages | 2025 | HTTP Archive Web Almanac | Page-level data for home pages, not whole sites. |
All of these figures come from the same underlying data, Google's Chrome UX Report, which collects real loading and interaction times from Chrome users who opt in. They differ because of what is counted and when.
The Web Almanac splits websites by device. Mobile is harder, because phones and mobile networks are usually slower, so 48% of mobile sites pass against 56% on desktop.
Google's monthly announcements give one rate for all origins in each month's dataset, without the device split, which is why their 53% to 56% sits between the Almanac's mobile and desktop rates. They are also more recent: 55.9% in September 2026.
Page-level figures differ again. Home pages pass less often than other pages on the same sites, because visitors often arrive at a home page with nothing cached. And a site can have good results on one metric but still fail, since passing needs LCP, INP and CLS all to be good. Older years are not fully comparable: INP replaced FID in March 2024.
What it means
How to use these numbers
About half of websites give their visitors a good experience on Core Web Vitals, and mobile lags desktop. In 2025, 48% of mobile sites passed, up from 44% in 2024 under the same test, and Google's own monthly count of all origins was 55.9% in September 2026.
Loading speed is the main problem. On mobile, 62% of pages had a good Largest Contentful Paint, against 77% for responsiveness and 81% for layout stability, so slow images, servers and scripts hold back more sites than anything else.
Popular sites are not automatically better. On mobile, 51% of the top 1,000 sites pass, but only 37% of the top 100,000; the Almanac suggests differences in page complexity and in performance investment.
For site owners, check the Core Web Vitals report in Google Search Console, which uses the same Chrome data, and start with LCP on mobile. A failing site gives real visitors a slower or jumpier experience.
Method and sources
How it was measured
Method
- HTTP Archive Web Almanac
- 2025 performance chapter (Chrome UX Report data, primary analysis on July 2025) and SEO chapter (June 2025 figures), published 15 Jan 2026; millions of websites, mobile and desktop
- Google Chrome UX Report
- Monthly dataset announcements by the Chrome team on the chrome-ux-report-announce list, about 17 to 19 million origins each month; origin-level rates for all devices
- Definition
- A site or page passes when its LCP, INP and CLS are all rated good on real Chrome visits
- Checked at source
- 23 Oct 2026 (repo stats); 31 Oct 2026, the Web Almanac 2025 performance and SEO chapters and eight CrUX announcements
- Last changed
- 31 Oct 2026
- Data files
- CSV · JSON (stable links)
Sources
- Web Almanac (SEO chapter), HTTP Archive Research
- Chrome UX Report (CrUX) monthly dataset, Google Chrome team Research
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FAQ
More questions people ask
Which Core Web Vital do most sites fail?
Loading speed (LCP). Only 62% of mobile pages had a good LCP in June 2025, against 77% for INP and 81% for CLS.
Do popular websites pass Core Web Vitals more often?
Only the very top. On mobile, 51% of the 1,000 most popular sites pass, but 42% of the top 10,000 and 37% of the top 100,000 (Web Almanac 2025).
Why do home pages score worse than other pages?
Visitors usually arrive at a home page with nothing cached. In 2025, 45% of mobile home pages had good Core Web Vitals against 56% of secondary pages.
Is the pass rate still rising?
Slowly. Google's Chrome UX Report counted 51.0% of origins passing in September 2024, 53.7% in September 2025 and 55.9% in September 2026.
Every number on this page was checked at its original source (HTTP Archive, Google Chrome team). Free to cite with a link to this page.