Test your website speed
GTmetrix tells you how your website performs, why it's slow, and how to optimize it.
We're relied on by the best, with 1,205,412,682 pages analyzed so far.
Latest News and Guides
Interaction to Next Paint (INP) Explained
We explain what Interaction to Next Paint (INP) is, how it impacts performance, and why GTmetrix doesn't track it (yet).
Field vs Lab (Synthetic) Data – How Do They Compare?
We explain the key differences between field and lab data and how you should interpret them.
We'll show you where your page is slow, what's causing it, and how to fix it
GTmetrix breaks down your page performance in an easy to read, summarized report.
Get a detailed assessment of page performance with:
- Lighthouse metrics and audits
- Web Vitals (LCP, TBT, CLS)
- Various Analysis Options
- Waterfall, Video and Report History
Track your performance over time
We'll test your page on a schedule and keep track of how it's doing.
Track historical trends and be aware of performance dips or spikes on an hourly,daily, weekly, or monthly basis.
Learn why monitoring is important
Get notified when your page is slow
Set up an alert and get notified when your page underperforms.
We'll send you an alert linked to a full report so you can know what
happened.
See how your page loads on different devices
Test your page on over 40 different Simulated Device options.
Analyze your performance with iPhones, iPads, Samsung Galaxy/Note, Google Nexus/Pixel phones, and other popular devices.
How does your page perform around the world?
See how your page performs in 22 different global test locations and make sure it loads fast for all your visitors worldwide.
Premium Test Locations only available with GTmetrix PRO.
See all our global test locations
Analyze your site now and see how well it performs!
Take advantage of all the features GTmetrix has to offer and make your site the fastest it can be!
Need to use GTmetrix in a professional capacity? Check out GTmetrix PRO!