Website Speed TestSpeedReady
We load the page in our own browser on a phone and a desktop and measure how fast it shows and responds, which files weigh the most and what blocks the first view.
A phone and a desktop run take about 30 seconds together. No account needed. 6 of 6 checks left today.
How to use it
Four steps from an address to results you can act on.
A phone sized browser with a slower processor loads the page.
The same page on a desktop browser.
Paint times, blocking time, layout shifts and every file.
What to fix first, with the files behind each number.
What it brings you
Every result comes with the proof behind it, so you can check it yourself.
When the main content and the first content appear.
How long scripts block taps and clicks.
How much the layout jumps while loading.
Bytes by type and the heaviest files.
CSS and scripts that hold back the first view.
What the result looks like
Results are sorted so the most important rows come first. This example uses sample data to show the layout.
| Measure | Phone | Desktop | Status |
|---|---|---|---|
| LCP | 3.9 s | 1.6 s | Warning |
| TBT | 420 ms | 60 ms | Warning |
| CLS | 0.02 | 0.01 | Passed |
| Page weight | 2.8 MB | 2.8 MB | Warning |
Questions
No. They are lab numbers from our own browser. Real visitor data can differ.
The phone test uses a slower processor and a smaller screen, like many real phones.
Only the measurements and screenshots of the result.