Pingdom web site monitoring and other infrastructure for you and instantly let you know when anything goes wrong. Measure uptime, downtime, and the performance of your website as experienced by visitors.




PageSpeedPlus.com is described as 'Monitor your Google PageSpeed Insights Score and receive alerts when the score falls. Track your score over time with URL history so you can see when things changed. Scan your entire site instead of just the homepage. PageSpeedPlus' and is a website monitoring tool in the network & admin category. There are more than 10 alternatives to PageSpeedPlus.com for a variety of platforms, including Web-based, Google Chrome, Mozilla Firefox, SaaS and Node.JS apps. The best PageSpeedPlus.com alternative is Pingdom. It's not free, so if you're looking for a free alternative, you could try Google Lighthouse or GTmetrix. Other great apps like PageSpeedPlus.com are Screaming Frog SEO Spider, PageSpeed Insights, WebPageTest and Pingdom Website Speed Test.
Pingdom web site monitoring and other infrastructure for you and instantly let you know when anything goes wrong. Measure uptime, downtime, and the performance of your website as experienced by visitors.




Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO and more.




The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links, images, CSS, script and apps from an SEO perspective.

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.

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

Screpy is an AI-based web analysis tool that can analyze all pages of your websites in one dashboard and monitor them with your team. It's powered by Lighthouse and it also includes some different analysis tools (SEO, SERP, W3C, Uptime, etc).




Website speed test, DNS lookup service incl EDNS client subnet, fast geolocation for IP or hostname, HTTP response headers, FREAK attack tester and more.



Open Source Web Speed Performance Optimization and Monitoring with Lighthouse. Available as a free SaaS or run it yourself to offer a SaaS to your end-users. Simulate an actual user using Chrome to analyze the performance with Websu.

MachMetrics 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



Vita - Lighthouse alternative for iOS Safari. Vita is a Safari extension for iOS that measure site's Core Web Vitals.



