GTmetrix Alternatives in 2026
GTmetrix (Carbon60) is a convenient PageSpeed analyzer since 2009, combining Lighthouse + WebPageTest in one UI. Pain points in 2026: free tier is 1 location and 1 device, no real-user (CrUX) data, history limited to 7 days. Alternatives: Enterno.io Speed (Core Web Vitals field + lab free), Google PageSpeed Insights, WebPageTest, Pingdom Speed Test, Calibre.
Below: competitor overview, feature-by-feature comparison, when Enterno.io wins, FAQ.
About the Competitor
GTmetrix founded in 2009. Runs on Lighthouse + WebPageTest. Free tier: 1 location (Canada), 1 device, 7 days history. Pro ($14.95-$249/mo): 22 locations, 6 months history, API.
Enterno.io vs Competitor — Feature Comparison
| Feature | Enterno.io | Competitor |
|---|---|---|
| Core Web Vitals (LCP, INP, CLS) | ✅ | ✅ |
| Field data (CrUX, real users) | ✅ | ❌ |
| Multiple locations (free) | ✅ (3: RU/EU/US) | ❌ (Canada only) |
| Mobile + Desktop split | ✅ | ⚠️ Pro only |
| History > 30 days (free) | ✅ Pro | ❌ |
| API | ✅ Pro | ✅ Pro |
| Scheduled monitoring | ✅ | ✅ |
| Pro price | ₽490/mo | $14.95/mo |
When to Pick Enterno.io
- You need real-user metrics (Field Data) — GTmetrix does not show them
- You test from multiple regions for free — GTmetrix free is Canada-only
- You want a lighter price — Enterno Pro ₽490 vs GTmetrix Pro ₽1400+
- You want PageSpeed + Uptime + SSL in one UI — GTmetrix does PageSpeed only
Why teams trust us
How it works
Enter page URL
Lighthouse analyzes
Get CWV scores & tips
Why Does Site Speed Matter?
Page load speed directly impacts conversion, SEO rankings, and user satisfaction. Google uses Core Web Vitals as a ranking factor. Every extra second of load time cancost up to 7% in conversions.
Lighthouse Analysis
Google Lighthouse-based analysis: Performance, Accessibility, Best Practices, SEO.
Core Web Vitals
LCP (rendering), FID (interactivity), CLS (visual stability) — key Google metrics.
Resource Analysis
Breakdown by type: HTML, CSS, JavaScript, images, fonts. Size, request count, blocking resources.
Actionable Advice
Specific recommendations with savings estimates: image compression, caching, minification, etc.
Mobile vs Desktop
- Tested on Moto G Power emulation (slow CPU)
- Network: 4G (1.6 Mbps, 150ms RTT)
- Stricter speed scoring
- Google indexes mobile-first
- Priority for SEO optimization
- High CPU performance
- Fast connection without throttling
- Scores typically 20-40 points higher
- Important for B2B and corporate sites
- Use for baseline comparisons
Who uses this
SEO
Core Web Vitals for rankings
Developers
performance optimization
Marketers
speed = conversions
DevOps
performance regression
Common Mistakes
async/defer block rendering. Move to end or add attribute.Cache-Control, the browser reloads CSS/JS on every visit.Best Practices
loading="lazy" for images below the fold.brotli on;Cache-Control: max-age=31536000, immutable. HTML: max-age=0, s-maxage=60.<link rel="preload"> for fonts and CSS. Reduces LCP by 200-500ms.Get more with a free account
Speed check history, competitor comparison and PageSpeed monitoring.
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Frequently Asked Questions
Lab Data vs Field Data?
Lab — simulated measurement in a controlled env (Lighthouse). Field — real Chrome user data (CrUX). Field data is authoritative for Google ranking.
GTmetrix or PageSpeed Insights?
PSI is free and shows field data. GTmetrix gives a nicer waterfall. Enterno.io = PSI field data + waterfall + history combined.
Can I test staging?
GTmetrix requires a publicly accessible URL. Enterno.io (Pro) supports Basic Auth or tokenised URLs.
Core Web Vitals — did INP replace FID?
Yes, since March 2024. See <a href="/en/s/research-core-web-vitals-runet-2026">our CWV research</a>.