How fast does a small business website need to be?

Owners ask this in two forms: "is my site slow?" and "does it matter?" Both have measurable answers. Google publishes the thresholds it uses, the HTTP Archive publishes how the rest of the web scores against them, and Google and Deloitte measured what a tenth of a second is worth. This article puts those together and ends with a check you can run yourself in ten minutes, no account needed.

The three numbers Google actually uses

Google calls them Core Web Vitals. Each one measures something a visitor feels, and each has a published threshold for "good".^[1]

The detail that trips people up is who is measured. Google judges a page by the 75th percentile of real visits, split by mobile and desktop.^[1] In plain terms: three out of four visitors have to get a good experience, and the phone number counts separately from the laptop number. A site that feels instant on the office Wi-Fi can still fail, because the people who matter are on a two-year-old phone on a weak cellular signal.

How many sites pass

The HTTP Archive's 2025 Web Almanac measured millions of sites against those thresholds using real Chrome user data from July 2025.^[2] On mobile, 48% of sites had good Core Web Vitals, up from 44% in 2024 and 36% in 2023. On desktop the figure was 56%, almost unchanged from the year before.^[2]

The miss is almost always loading. Only 62% of mobile sites reach a good LCP, against 74% on desktop.^[2] Responsiveness (INP) passes on about 77% of sites, and visual stability (CLS) on 81% of mobile pages.^[2] So if your site fails, the first place to look is what has to download before the main image appears.

Two Almanac figures explain why. Only 15% of mobile pages pass Lighthouse's render-blocking resources audit, meaning 85% load scripts or stylesheets that hold up the first paint.^[2] And about 16–17% of pages lazy-load their own LCP image, which tells the browser to wait on the one thing the visitor is waiting for.^[2] Both are common defaults in page builders and theme plugins.

What a tenth of a second is worth

In 2020 Deloitte Digital, in a study commissioned by Google, studied 37 leading European and American brand sites across retail, travel, luxury and lead generation, covering more than 30 million user sessions. Where every page in the journey improved by 0.1 seconds across four speed metrics, retail conversions rose 8.4% and travel conversions 10.1%.^[3] The study is observational, not a controlled experiment, so read it as "faster sites sold more", not as a guaranteed return. The direction, though, matches every other dataset on the subject.

Does it affect Google rankings?

Yes, as one factor among many. Google's page-experience documentation says its core ranking systems look to reward content that provides a good page experience, and the first item on its self-assessment list is "Do your pages have good Core Web Vitals?"^[4] Speed will not lift a thin page above a good one. It does decide ties, and it decides whether the visitor who arrives stays long enough to call.

Why most small business sites are slow

Not the hosting. The page. A typical builder or theme site loads a page-builder framework, a slider, two or three font families from a CDN, a chat widget, an analytics tag, a cookie banner, a form plugin, and a hero image saved at 4,000 pixels wide. Each one is small on its own. Together they are several megabytes and a dozen render-blocking requests before the headline paints. The Almanac's median mobile page spends 1.9 seconds with the main thread blocked, which is why taps feel dead on phones.^[2]

Check your own site in ten minutes

No login, no tools to install.

• 1. PageSpeed Insights. Paste your address into pagespeed.web.dev and read the top section, "Discover what your real users are experiencing", on the Mobile tab. That is Chrome's real-visitor data, the same data Google uses.^[1] If it says there is not enough data, your site has too few visitors for a field score; use the lab score below it as a rough guide only.
• 2. Search Console. If your site is verified, open the Core Web Vitals report. It lists which pages are poor, need improvement or are good, by device.^[1]
• 3. Your own phone. Turn off Wi-Fi, open your site, and count to three. If the headline is not on screen, you have your answer. Then tap the menu. If nothing happens for a beat, that is the INP problem your visitors feel.

If the field data shows a red LCP, the fixes in order of payoff are: shrink and correctly size the hero image, remove render-blocking scripts and third-party fonts, and remove lazy-loading from the first image. If it shows a red INP, the cause is almost always JavaScript from plugins and widgets; removing is faster than optimising. If the site is a builder site with a dozen plugins, it is often cheaper to rebuild it as a plain page than to tune it, which is what our website service does, from $1,000 with the price agreed first.

Speed is one half of a site that wins work. The other is having a clear page for each thing you do, which we cover in why every service needs its own page.