What PageSpeed Scores Do and Don't Tell You

Four scores, four questions

PageSpeed Insights reports four scores: performance, accessibility, best practices and SEO. Performance asks how quickly the page loads and becomes usable. Accessibility checks things like contrast, labels and structure. Best practices looks at security and modern standards. SEO checks the basics search engines need.

Each answers a different question, so a single number never tells the whole story.

Mobile runs lower on purpose

Mobile scores are almost always lower than desktop. The test simulates a mid-range phone on a slower connection, which is deliberately demanding. A desktop score in the high 90s alongside a mobile score in the 80s is normal for a site with real photos and features.

Scores move around

Running the same test twice can give different numbers. Measuring several times and using the middle result gives a fairer picture than a single run.

What a score can't see

A perfect score doesn't mean the reservation form delivers, the menu is current or the phone number is right. PageSpeed measures how a page loads, not whether the business behind it is reachable.

Use it as a check, not a goal

The useful habit is checking scores after changes and investigating big drops. Chasing the last few points often means removing things customers actually want, like photos. A fast site that does its job beats a perfect score on a site that doesn't.