Short answer
Go to pagespeed.web.dev, paste your website's address and look at the Mobile tab first: it's the toughest and the closest to your real visits. A score from 90 to 100 is good, but what Google takes into account are the Core Web Vitals from real users: the main content loading in 2.5 seconds or less (LCP), the page responding in 200 milliseconds or less (INP) and nothing shifting while it loads (CLS of 0.1 or less).
PageSpeed Insights is Google's free tool for measuring how fast and well built a page is. The problem is that it hands you a dashboard full of circles, colors and acronyms. Here we read it question by question, using the typersagency.com result from September 28, 2026 as the example.
What do the four circles mean?
- Performance: how fast the page loads and responds. Us: 99 on desktop and 91 on mobile.
- Accessibility: whether people with visual impairments or who navigate by keyboard can use it. Us: 95.
- Best practices: security and well-written code, like HTTPS or no console errors. Us: 100.
- SEO: whether Google can read and understand the page: title, description, crawlable links. Us: 100.
Green is 90 to 100, orange 50 to 89 and red 0 to 49.
Why does mobile always score lower?
Because the mobile test simulates a mid-range phone on a slow 4G connection. That's on purpose: many of your customers browse that way. That's why our website scores 99 on desktop and 91 on mobile, with the same code. If you only look at the desktop tab, you're fooling yourself a little.
What does each metric measure?
| Metric | The question it answers | Green from | Typers desktop | Typers mobile |
|---|---|---|---|---|
| First Contentful Paint | When does the first thing appear on screen? | 1.8 s or less | 0.8 s | 2.7 s |
| Largest Contentful Paint | When does the most important thing appear? | 2.5 s or less | 0.8 s | 2.7 s |
| Total Blocking Time | How long does it freeze while loading? | 200 ms or less | 0 ms | 0 ms |
| Cumulative Layout Shift | Do things move around while loading? | 0.1 or less | 0 | 0.049 |
| Speed Index | How fast does the screen fill in? | 3.4 s or less | 0.9 s | 3.0 s |
Yes: on mobile, two of our metrics are orange. We explain it in how we scored 99 and what we're still missing.
Does this score raise my Google ranking?
Not directly. The 0 to 100 score is a lab test. What Google uses as a signal are the Core Web Vitals from real users, which PageSpeed shows at the top, in the field data section, when your website has enough visits. And it's one signal among many: useful content still weighs more. A slow website, however, loses customers before Google ever steps in.
What is the "Agentic Browsing" category?
It's a new Lighthouse category, still in development, that checks whether an AI agent can navigate your page: whether the accessibility structure is well formed, whether forms are ready for agents, whether you have an llms.txt file that introduces you to AIs and whether the layout stays stable while loading. We scored 3 out of 3. It isn't a requirement today, but it shows where the web is heading: more and more visits will come from assistants searching on behalf of your customers.
Why do I get a different number every time?
Because the test depends on the server, the network and what's loading at that moment. It's normal for it to vary a few points. Run the test two or three times and look at the trend, not a single number.
Where do I start if my website scores red?
- Check the Mobile tab and write down LCP and CLS.
- Scroll to the Diagnostics section: Google tells you which files are heavy or block loading.
- Start with images: they're almost always the heaviest thing.
- Remove the plugins, scripts or widgets you don't use.
- Measure again after each change, not all at the end.
How we do it at Typers
Every website we build ships measured with PageSpeed, with structured data and ready for AI search engines. If you want us to review yours, we do it in the assessment. See also how we build websites and apps.