
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.

Foam
Open repositories in a VSCode environment in your browser

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 | github.surf |
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What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
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.


Share your experience with using GTmetrix and GitHub Surf. 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...
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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 GitHub Surf since Mar 2021.
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With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
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Lighthouse is an open-source, automated tool for improving the quality of web pages.
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Run a free website speed test from multiple locations around the globe using real browsers...
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