Quick Verdict
GTmetrix is a great performance testing tool, but it's just that—a testing tool. Lemwatch adds uptime monitoring, SEO auditing, and security checks, giving you one dashboard for all your site health needs.
Choose Lemwatch if you need:
- Complete site monitoring in one tool
- Uptime + performance + SEO combined
- Continuous automated monitoring
- Security and SSL tracking included
Choose GTmetrix if you need:
- Detailed waterfall performance analysis
- Deep one-time performance audits
- Video playback of page loads
- Legacy PageSpeed/YSlow scores
Feature Comparison
See how Lemwatch stacks up against GTmetrix
| Feature | GTmetrix | |
|---|---|---|
| PageSpeed/Lighthouse Testing | ||
| Core Web Vitals | ||
| Uptime Monitoring | ||
| SEO Monitoring | ||
| SSL Certificate Tracking | ||
| White-Label Reports | ||
| Broken Link Detection | ||
| Security Header Checks | ||
| Content Change Detection | ||
| Alert Notifications | ||
| Historical Comparison | ||
| Free Tier | ||
| API Endpoint Monitoring | ||
| Money Page Tracking | ||
| Automated Playbooks | ||
| Carbon Footprint Tracking | ||
| Google Search Console Integration | ||
| Fleet Health Dashboard | ||
| Embeddable Status Pages | ||
| Custom Domain Status Pages | ||
| Heartbeat / Cron Monitoring | ||
| Keyword Monitoring | ||
| Incident Postmortems | ||
| Response Time Thresholds | ||
| Status Page Subscribers | ||
| Domain Expiry Monitoring | ||
| Deep HTML Quality Analysis | ||
| Legal Page Compliance | ||
| Priority Action Plan |
Honest Comparison
Every tool has strengths and weaknesses. Here's an honest look at both.
Pros
- All-in-one monitoring (uptime + performance + SEO)
- Continuous automated testing
- Uptime monitoring included
- SSL and security monitoring
- Broken link detection
- Comprehensive site health dashboard
Cons
- Less detailed waterfall analysis
- No video playback of page loads
- Fewer test location options
- No legacy PageSpeed scores
GTmetrix
Pros
- Detailed waterfall chart analysis
- Video playback of page loading
- Many global test locations
- Legacy PageSpeed/YSlow scores
- Deep performance debugging tools
Cons
- No uptime monitoring
- No SEO monitoring
- No SSL certificate tracking
- No security header checks
- Single-purpose tool
Pricing Comparison
Compare what you get for your money
Lemwatch Pricing
Free
$0/month
- 10 sites
- All monitoring types
- Email alerts
Pro
$19/month
- 50 sites
- Uptime + Performance + SEO
- White-label reports
Agency
$59/month
- 150 sites
- Client dashboards
- Priority support
GTmetrix Pricing
Free
$0/month
- Limited tests/day
- Basic features
- 1 location
Solo
$8.25/month
- 150 tests/month
- More locations
- Monitoring alerts
Pro
$20/month
- 600 tests/month
- All locations
- Priority testing
💡 The Verdict
GTmetrix Pro ($20/mo) gives you 600 performance tests. Lemwatch Pro ($19/mo) gives you unlimited performance checks + uptime + SEO + security monitoring—significantly more value.
How to Switch from GTmetrix
Migration takes less than 15 minutes. Here's your step-by-step guide.
Export your sites from GTmetrix
Pull your monitor list out of GTmetrix — most tools offer a CSV export, or you can copy the URLs straight from the dashboard.
Create your free Lemwatch account
Sign up for the free tier — 10 sites, all check types, no credit card. Run it alongside GTmetrix while you compare.
Import and map your monitors
Paste or bulk-upload the URLs you exported from GTmetrix. Lemwatch auto-detects the platform, SSL state and sitemap for each one.
Rebuild your GTmetrix alert routing
Point alerts at the same channels you use today — email, Slack, Discord, Teams, PagerDuty or webhook — then set thresholds to match your GTmetrix config.
Run both in parallel, then cancel GTmetrix
Give it one billing cycle. Once Lemwatch alerts match GTmetrix's on the same incidents, cancel and keep the history in Lemwatch.
Need help migrating? Email us at support@lemwatch.com
GTmetrix vs Lemwatch FAQ
Common questions about switching from GTmetrix
More Than Just Performance Testing
Get the complete picture of your site health with uptime, performance, SEO, and security monitoring. Start free today.