
PageSpeed Insights
Pingdom
Google Lighthouse
WebPagetest
UptimeRobot
Ahrefs
SEMRush
GTmetrix is a free tool that analyzes your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.

ObservePoint
Trackingplan
AssertionHub
Checks every day that your website and Android app still track visitors correctly: which GA4 or dataLayer event stopped arriving after a release, at which step, and what tools send before cookie consent. Nothing to install.

Which is more popular?
Based on our record, GTmetrix seems to be more popular. It has been mentioned 143 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | gtmetrix.com | analyticsproof.com |
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| Company | — | Startup from the Czech Republic · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of GTmetrix yet.
Website and Android app tracking usually breaks quietly: a release changes the checkout, the purchase event still fires, but value or currency no longer arrives. Teams find out weeks later from a ROAS drop or a finance mismatch. How it works - Record a key journey once, such as product → cart →...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of AnalyticsProof yet.
Walkthroughs and reviews on video.
WordPress Speed Optimization - How I Got 100% GTmetrix Scores
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing GTmetrix and AnalyticsProof.
AnalyticsProof's answer:
User journey tests are recorded once in a browser that runs on our servers, then replayed every day. Each step shows what the page pushed to the dataLayer next to what was sent to GA4 (and other tools), plus a cookie-banner check of what tools send before consent and after rejection. An MCP server lets AI assistants read results and set up checks.
AnalyticsProof's answer:
It checks the journeys that make money, such as cart and checkout, step by step, and says exactly which event or parameter stopped arriving after a release. Nothing is installed on the site. The same check runs on Android and smart-TV apps, which most tag-audit tools don't cover. Pricing starts with a free plan instead of an enterprise contract.
AnalyticsProof's answer:
Analytics leads, Head of Digital and e-commerce managers at companies that release often, and analytics/PPC agencies that look after tracking on many client websites.
AnalyticsProof's answer:
Built by Václav Ráš, a web analytics consultant who kept finding the same problem with clients: a release quietly breaks tracking and nobody notices for weeks. AnalyticsProof automates the check he used to do by hand in DevTools after every release.
Share your experience with using GTmetrix and AnalyticsProof. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


GTmetrix is a free tool that offers a comprehensive analysis of your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and provides actionable recommendations on how to...
We have no reviews of AnalyticsProof yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


👉 Use Google PageSpeed Insights 👉 Try GTmetrix for detailed performance reports. - Source: dev.to / over 1 year ago
This basically defines how shifty your website is. If you've visited any website where the text and content just randomly moves as images and other content become visible, you'll know how disruptive and frustrating it can be. CLS aims to... - Source: dev.to / over 1 year ago
GTmetrix — Get detailed waterfall charts and load time breakdowns. - Source: dev.to / over 1 year ago
Tracking AnalyticsProof since Nov 2026.
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