A small business website should fully load in under 2.5 seconds on a mobile phone, and ideally closer to one second. Past three seconds, more than half of your visitors leave before they ever see your page. That’s the short answer, and for most owners, it’s the only number that matters.
But “load time” turns out to mean a few different things, and the targets that actually affect your customers and your Google ranking are more specific than one number. Here’s the plain-English version, with the benchmarks Google uses and how to check your own site in two minutes.
The short answer: under 2.5 seconds
If you want one rule to remember, it’s this:
Your site should be visibly loaded and usable in under 2.5 seconds on a typical phone and connection. Under one second is excellent. Over three seconds is costing you customers.
Google’s research is consistent: 53% of mobile visitors leave a page that takes longer than three seconds to load. People searching for a local business on their phone, in line, in the car, between errands, have almost no patience for a spinner.
What “load time” actually means
When people say “how fast does it load,” they’re usually mixing up three separate things. Google measures all three as part of what it calls Core Web Vitals, and these directly affect your search ranking.
| What it measures | Plain meaning | Good target |
|---|---|---|
| Largest Contentful Paint (LCP) | How long until the main thing (your hero image or headline) appears | Under 2.5 seconds |
| Interaction to Next Paint (INP) | How quickly the page responds when someone taps or clicks | Under 200 milliseconds |
| Cumulative Layout Shift (CLS) | Whether the page jumps around while loading | Under 0.1 (almost no shifting) |
You don’t need to memorize these. The takeaway is simple: LCP under 2.5 seconds is the headline number for “is my site fast enough,” and Google treats it as a ranking signal. Clear it on mobile and you’re in good shape. Miss it and you’re losing visitors and ranking lower than you could be.
How fast is fast, and how slow is too slow?
Here’s a practical scale for a small business site loading on a mid-range phone:
- Under 1 second: Excellent. Visitors won’t perceive any wait.
- 1 to 2.5 seconds: Good. This is the target. Most people won’t notice the load.
- 2.5 to 4 seconds: Slow. A meaningful share of visitors leave before the page appears.
- Over 4 seconds: A problem. You’re losing customers daily, and Google knows it.
For context: most Wix and WordPress sites on mobile land in the three to six second range. (Here’s why they slow down.) A well-built custom site should clear 2.5 seconds comfortably, often loading in under a second.
How to check your load time (free, two minutes)
You don’t have to guess. Use Google’s own free tool:
- Go to PageSpeed Insights. It’s free and made by Google.
- Paste in your website address and run it. Read the Mobile tab, not Desktop. Most of your visitors are on phones, and mobile is where sites are slowest.
- Look at the Performance score (0–100) and the LCP number. Performance under 50 on mobile is a real problem. An LCP over 2.5 seconds means visitors are waiting too long.
If you’d rather not decode the results, run a free website audit and it’ll check your load time and send a plain-English report. (Not sure what the numbers mean? Start with what a Google Lighthouse score is.)
Why slow load times cost real money
This isn’t just a number on a test. A slow site costs you in three concrete ways:
- Lost visitors. More than half of mobile users abandon a page that takes over three seconds. They never see your services, your phone number, or your booking form.
- Lower Google ranking. Since Core Web Vitals became a ranking factor, slow sites get pushed down in search, so fewer people find you at all.
- Less trust. A sluggish site reads as “this business isn’t quite on top of things,” even when you absolutely are.
Here’s a rough sense of the cost. Say 200 people a month visit your site, and normally 5% get in touch, that’s 10 leads. If 30% leave before your slow site loads, you’re down to 7. That’s three leads a month lost to a loading spinner, and over a year that’s real revenue.
What actually makes a site faster
The biggest single win for most small business sites is usually images: a homepage hero photo that’s 4 MB instead of 200 KB can add several seconds on its own. After that, it’s about cutting the scripts and platform overhead the page doesn’t actually need.
On Wix and WordPress you can get modest gains, compress images, add caching, switch hosting, but you’re fighting the platform’s built-in weight. A custom-built static site sidesteps most of this by sending only what the page needs and nothing else. That’s why the sites I build for Toronto and Durham Region businesses consistently load in under a second.
If your site is slow and you’re tired of it costing you customers, start with a free website audit. I’ll tell you your exact load time, what’s slowing it down, and whether a rebuild actually makes sense. Sometimes it doesn’t, and I’ll tell you that too.