Poor
0 to 49
Needs work
50 to 89
Good
90 to 100
Free tool
Free Website Speed Test: How Fast Is Your Site on a Phone?
Type your address and this website speed test runs Google's own phone test on your homepage, reads the page the way a search engine does, and tells you in plain words what is slowing it down. It takes about a minute.
Free. No email, no sign-up. You get a private link to your report that you can keep or forward.
What this website speed test looks at
Most speed tests stop at speed. This one also checks the things that decide whether a fast page gets found, because a quick site that Google can't read still doesn't ring your phone.
Google's phone speed test
Your score out of 100 from Google PageSpeed Insights on a simulated mid-range phone, and how long your main content takes to appear, measured against the bands Google publishes.
Your server and your page weight
How long your server takes to start sending the page, where under half a second is the target, and how heavy the page is before a single image loads.
What a search engine can read
How many words are readable without JavaScript, plus your title, your search description, your main heading, your canonical link and the setting that makes a page fit a phone.
The files crawlers look for
Your robots.txt, your sitemap and how many pages it lists, structured data for rich results, an llms.txt for AI assistants, and the preview a link shows when someone shares it.
What 1,277 local websites scored
- The median site scored 60 out of 100 on Google's phone test.
- Only 6% scored 90 or more, the band Google calls good, and 19% scored under 50.
- The median site took 8.3 seconds to show its headline on a phone, and 85% took longer than 4 seconds, which Google rates poor.
- 93% took longer than three seconds. In Google's 2016 study of mobile sites, 53% of visits were abandoned once a page took longer than that.
So if your score disappoints you, you have company. It also means a fast site stands out in almost every town and trade we measured.
What the numbers mean
Google sorts its phone score into three bands: 90 to 100 is good, 50 to 89 needs improvement and 0 to 49 is poor. The score is a summary. The numbers underneath are what visitors feel.
Main content time (LCP)
How long until the biggest thing on the screen, usually your headline or main photo, appears. Google calls 2.5 seconds or less good and more than 4 seconds poor.
Layout shift (CLS)
How much the page jumps while it loads, the reason people tap the wrong button. Google wants 0.1 or less.
Response to a tap (INP)
How quickly the page reacts when someone taps or types. Google calls 200 milliseconds or less good.
What slows most local websites down
The same few causes turn up on site after site:
- Photos straight off a camera or a phone, sometimes several megabytes each.
- Chat widgets, review badges and tracking scripts that all load before the first word appears.
- Page builders that send a whole library of code to show one page.
- Slow, crowded hosting that takes a second or more to start answering.
- Fonts the browser waits for before it shows any text at all.
None of these show up when you open your own site on office Wi-Fi with everything already cached. They show up for the customer standing in their driveway on mobile data, which is who Google's test imitates.
Website speed test questions
Is this the same as Google PageSpeed Insights?
It uses Google PageSpeed Insights for the speed score, so the number matches what Google measures. Then it adds what a search engine can read on the page and the files crawlers look for, and explains each finding in plain words.
Why is my phone score lower than my desktop score?
Google tests phones on a slower processor and a slower connection on purpose, because that is what many of your visitors have. Google also ranks the phone version of your site, so the phone score is the one to watch.
What is a good website speed score?
Google calls 90 to 100 good. In our Web Index only 6% of local trade and clinic sites got there, so anything above the median of 60 already beats most of your competitors.
Why does my score change from one test to the next?
Every run loads your site fresh over a simulated network, and servers, ads and third-party scripts answer a little differently each time. A few points either way is normal. A big swing usually means a slow server or a script that sometimes hangs.
Do I have to give my email?
No. The whole report shows on screen before anything is asked, and you get a private link to it. If you want it on your phone, you can have the link texted to you.
Can you fix what the test finds?
Slow site? Let your agent fix it.
Name your agent and it builds you a site that's fast on a phone, then keeps it that way.