How Websites Are Performing in 2026: Core Web Vitals Benchmarks and What They Mean for Service Businesses
Fewer than half of mobile websites pass all three Core Web Vitals. This guide sets out what the 2025 Web Almanac found, what each metric measures, how to test your own site in ten minutes, and which fixes usually matter most on a service-business website.
- The 2025 HTTP Archive Web Almanac found about 48% of mobile sites and 56% of desktop sites pass all three Core Web Vitals, up from 44% mobile in 2024 and 36% in 2023.
- The 'good' thresholds are LCP 2.5 seconds or less, INP 200 milliseconds or less and CLS 0.1 or less, assessed at the 75th percentile of real visits.
- Passing is a quality floor, not a ranking trick. Slow, jumpy sites lose visitors regardless of what Google does.
- For most contractor sites, oversized images, third-party scripts and chat widgets cause the problems. All are fixable.
The Short Version of the State of the Web
Every year the HTTP Archive publishes the Web Almanac, an analysis of how the web is built and how it performs, drawing on real-user data from Chrome (the Chrome User Experience Report, or CrUX). Its 2025 performance chapter, based on July 2025 data, reported that about 48% of mobile sites pass all three Core Web Vitals, compared with 44% in 2024 and 36% in 2023. On desktop, about 56% pass, up from 48% in 2023 but only marginally from 2024.
Two things stand out. Progress is real but slow: more than half of mobile sites still fail at least one metric. And mobile lags desktop, which matters because most home-service customers are on a phone, often standing in the room with the problem.
A caution on sourcing: the headline pass rates are widely reported from the Almanac. Per-metric breakdowns circulate on third-party sites (commonly, loading is the weakest of the three), but we have not verified those against the Almanac's own charts, so we do not quote them here.
The Three Metrics in Plain English
Core Web Vitals are Google's standard measures of loading, interactivity and visual stability. The thresholds below are from Google's web.dev documentation.
| Metric | What it measures | 'Good' threshold | What a customer feels |
|---|---|---|---|
| LCP (Largest Contentful Paint) | How long the biggest visible element takes to appear | 2.5 seconds or less | The page looks ready or looks blank |
| INP (Interaction to Next Paint) | How quickly the page responds when someone taps or clicks | 200 milliseconds or less | Tapping 'Call Now' does something, or seems frozen |
| CLS (Cumulative Layout Shift) | How much content jumps around while loading | 0.1 or less | You go to tap a button and it moves |
Why This Matters More for Service Businesses
A contractor website has one job: get a worried person to call or book. That makes performance a conversion issue before it is an SEO issue.
Consider the typical visitor. They have a leaking roof or a dead heater, they are on a phone, possibly on a weak signal, and they will open two or three sites in quick succession. A page that takes several seconds to show a phone number, or whose call button shifts as an ad or banner loads, gives them an easy reason to hit back and try the next result.
We do not have a reliable, independent figure for how much conversion a given speed improvement adds for home-service sites, and you should distrust anyone who quotes one confidently. What is safe to say is the direction: faster, steadier pages remove friction at the moment of highest intent.
On the search side, Google has described Core Web Vitals as part of its page experience signals, but it has also said great content can rank despite a weaker experience. Treat performance as a floor you should clear, not a lever that lifts a poor site to the top.
Test Your Own Site in Ten Minutes
You don't need paid tools. Use these in order:
- Google Search Console, Core Web Vitals report: shows which URLs fail on real-user data, grouped by issue. This is the most important one, because it reflects actual visitors.
- PageSpeed Insights (pagespeed.web.dev): enter any page. Look first at the 'Discover what your real users are experiencing' panel, which is field data, then at the lab diagnostics for causes.
- Test on a real mid-range phone over mobile data, not just your laptop. Open your homepage and your top service page, and tap the call button.
- Test your key pages, not only the homepage: service pages, city pages, contact page and any landing page used in ads.
- Note that new or low-traffic sites may not have enough field data to show up. In that case rely on lab results and real-device testing.
The Usual Culprits on Contractor Websites
In our experience reviewing service-business sites (not a controlled study), the same few issues account for most failures:
| Problem | Typically hurts | Fix |
|---|---|---|
| Huge hero images and unoptimised photos | LCP | Resize to display size, use modern formats (WebP/AVIF), set explicit width and height, prioritise the hero image and lazy-load the rest |
| Chat widgets, review pop-ups, tracking tags and other third-party scripts | INP, LCP | Audit every script, remove the unused, load the rest after the page is usable |
| Autoplay video or heavy animations above the fold | LCP, INP | Replace with a still image on mobile, load video on demand |
| Images, banners or embeds without reserved space | CLS | Set dimensions or aspect ratios so layout does not move |
| Web fonts that swap late | CLS, LCP | Limit font families and weights, preload the key font, use a fallback that matches |
| Cheap shared hosting with slow response | LCP | Move to a host or CDN with fast server response |
| Heavy page builders and plugin stacks | All three | Reduce plugins, or move to a lighter build |
Performance Is Only the Foundation: What Else Makes a Site Perform
A fast site that does not convert is still failing. The best-performing service websites we see share a few traits beyond speed:
- A phone number and tap-to-call button visible without scrolling on mobile, on every page.
- A clear statement of what you do, where, and your licence details near the top.
- Real photos, real reviews and proof of local work rather than stock imagery.
- Short forms asking for the minimum, with a text-friendly option.
- A named process: what happens after the customer calls or submits the form.
- Accurate details that match your Google Business Profile.
- Accessible design (contrast, readable fonts, usable by keyboard and screen reader).
A Simple Performance Plan
If you want a sequence rather than a list:
- Week 1: check Search Console and PageSpeed Insights for your five most important pages. Record the three metrics.
- Week 1 to 2: fix images and remove unused scripts. This usually yields the largest gains for the least work.
- Week 2 to 3: fix layout shifts and test tap responsiveness on a real phone.
- Week 4: re-test, wait for field data to update (it is a rolling window of about 28 days), and set a quarterly check.
Sources
HTTP Archive, Web Almanac 2025, Performance chapter (almanac.httparchive.org/en/2025/performance). Headline mobile and desktop pass rates as reported; per-metric figures not verified.
Google, web.dev: 'Web Vitals' (thresholds and 75th-percentile assessment).
Observations about contractor sites are our own and are not a controlled study.
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