GTmetrix is a free tool that analyzes your page's speed performance. Using Page Speed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.


MachMetrics is described as 'Continually monitors the speed of your website. So you know exactly how your pages are performing throughout the day, around the world, and on various devices' and is a website monitoring tool in the network & admin category. There are more than 25 alternatives to MachMetrics, not only websites but also apps for a variety of platforms, including SaaS, Google Chrome, Mozilla Firefox and Mac apps. The best MachMetrics alternative is GTmetrix, which is free. Other great sites and apps similar to MachMetrics are PageSpeed Insights, WebPageTest, Request Metrics and Website Monitoring by Uptime.com.
GTmetrix is a free tool that analyzes your page's speed performance. Using Page Speed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.


PageSpeed Insights (PSI) reports on the performance of a page on both mobile and desktop devices, and provides suggestions on how that page may be improved.

Run a free website speed test from around the globe using real browsers at consumer connection speeds with detailed optimization recommendations.

Unified Web Performance that automatically tests your pages and tracks real user experiences. Automatically discovers your busiest pages and scans them weekly, providing actionable recommendations. Integrated Real User Monitoring to track the actual experience of visitors to...




Uptime.com: Real-time availability monitoring & response for preventing website downtime. Your complete website monitoring solution.




Super easy website performance monitoring for teams that want to have a faster, better ranking website. Get notified if your website gets slow. Most affordable Lighthouse, CrUX and RUM tool.




Pinpoint and solve performance issues in your Ruby, Java, .NET, PHP and Python apps with real user, application and server monitoring.

Monitor your website, server, API, application, service and get notified if your resources have some problems with availability. Upzilla notifies you in Slack, Telegram, Messenger, or by email. Works also as a public status page with subscriptions.




Use this free Website Speed Test to analyze the load speed of your websites, and learn how to make them faster.

Get the web's modern capabilities on your own sites and apps with useful guidance and analysis from web.dev.


YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. YSlow is a Firefox add-on integrated with the Firebug web development tool.