Free
GTmetrix
The go-to website speed testing tool used by developers and marketers worldwide.
4.74.7 out of 5 stars32,000 reviews
GTmetrix is a free website performance testing tool that analyses page speed scores Core Web Vitals waterfalls and specific recommendations. It tests from multiple global locations and tracks scores over time.
Speed TestingCore Web VitalsWaterfall ChartsPerformance HistoryVideo RecordingAPI
Starting price
Free
Free plan available
Overall4.7
Ease of Use4.6
Value for Money4.9
Features4.6
Support4.0
Pros & Cons
✓Pros
- ✓Free for basic testing
- ✓Detailed waterfall and bottleneck analysis
- ✓Core Web Vitals scoring
- ✓Track performance over time
✕Cons
- ✕Advanced features require Pro
- ✕Testing locations limited on free plan
- ✕Can be overwhelming for non-technical users
Best For
- ◆Developers diagnosing speed issues
- ◆Marketers monitoring site performance
- ◆Agencies reporting speed to clients