Picture someone on their phone, looking for a provider near them. They tap your listing. And then: nothing. A white screen. A twitching logo. A layout still sorting itself out.

After three seconds, more than half of these people are gone again — back to Google, on to the next result. That's not a guess, that's measured behaviour. And the next result, in the vast majority of cases, is your competitor.

The bitter part: you never see these customers. No call, no enquiry, no abandoned order in any statistic. You lose them silently. A slow website is like a shop with a sticking door — most people pull once, then walk on.

What "slow" means technically

Speed sounds like a gut feeling, but it's now a hard number. For years Google has measured three values that together make up the Core Web Vitals — and in 2026 the bar was raised:

• Loading time (LCP): the largest visible element should be in place in under 2.0 seconds. It used to be 2.5 seconds to count as green.
• Responsiveness (INP): when someone taps a button, something should happen within 200 milliseconds at the latest. Anything slower feels sluggish — and becomes a ranking risk.
• Stability (CLS): nothing should jump around while the page loads. Anyone who's accidentally tapped an ad because the button shifted at the last second knows the opposite.

This isn't an end in itself. These values describe quite precisely whether a page feels good or not.

The uncomfortable truth: a page doesn't get faster over time, it gets slower. Every new plugin, every tracking script loaded in, every uncompressed image from the last campaign adds a few hundredths on top. At some point the quick second and a half from launch has become four — and nobody noticed the moment it happened.

The three biggest brakes — and what helps

• Huge images. A photo that comes off the camera at three megabytes and gets uploaded uncropped slows any page to a crawl. Modern formats like AVIF or WebP often deliver 70 percent less file size at the same visual quality.
• Too much tech running in the background. Three analytics tools, two chat widgets, a cookie banner that blocks half the page first. Each of them wants to load before the visitor sees anything.
• Loading everything at once. Images far down the page don't need to be there before anyone even scrolls. "Lazy loading" only loads them when they're needed.

The honest part: speed is detail work. There's no single button that fixes everything. It's twenty small things that together make the difference between "the page is there" and "the page was too slow, I'm gone".

If you don't know where your page stands right now: measure it. Google provides the tool for free (PageSpeed Insights). It takes thirty seconds and tells you in black and white whether you're currently losing customers at the door.