GTmetrix
SupportingSite Audit
GTmetrix is a page performance testing service that runs Lighthouse-based audits from selectable locations, devices and connection speeds, with scheduled monitoring, alerting and historical trend graphs on paid tiers.
ABOUT GTMETRIX
GTmetrix and PageSpeed Insights answer different questions. PSI reports what
real Chrome users experienced; GTmetrix runs a controlled test you can repeat
under identical conditions and chart over time. Tier names are verified from
the pricing page but the figures render client-side, so no prices are recorded
and this record is flagged needs_review.
OVERVIEW
- Who is it for?
- Developers and technical SEOs who need repeatable performance tests from specific locations rather than a single one-off score.
- Problem
- A page speed number without a stated location, device and connection is not comparable to any other number, including the one you took last week.
- Solution
- GTmetrix pins the test conditions - location, device, connection speed - and stores results over time with scheduled monitoring and alerting, so performance changes are visible as a trend rather than a snapshot.
- What makes it unique
- Controlled and repeatable test conditions plus stored history, which is what makes a performance number worth comparing at all.
KEY FEATURES
- Lighthouse-based performance audits
- Test location, device and connection speed selection
- Scheduled monitoring with alerting
- Historical performance trend graphs
- Video capture of page load
- Public API
- MCP server support
- Free testing tier
PRICING PLANS
Every published plan tier. Editorial reasoning about which one to buy lives on our reviews and best-of pages, not here.
Lite
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Entry paid tier, priced per month billed yearly.
Core
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Mid tier, priced per month billed yearly.
Advanced
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Vendor-recommended tier, priced per month billed yearly.
Expert
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Top published tier, priced per month billed yearly.
Enterprise
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Customised GTmetrix PRO plan, quoted on request.
COMPANY
- Publicly traded
- No
Where ZPlatform covers GTmetrix
Ranked in
Best-of lists that rank this tool alongside others.
Sources
- GTmetrix pricing page - Pricing page · checked Sep 5, 2026