Website speed test, DNS lookup service incl EDNS client subnet, fast geolocation for IP or hostname, HTTP response headers, FREAK attack tester and more.
Cost / License
- Free
- Proprietary
Platforms
- Online



User Probe is described as 'It costs a lot to have a slow website. Stop gambling your users will endure slow pages. Start running performance regression now!' and is a website monitoring tool in the network & admin category. There are more than 10 alternatives to User Probe for a variety of platforms, including Web-based, Mozilla Firefox, Google Chrome, Safari and SaaS apps. The best User Probe alternative is Pingdom. It's not free, so if you're looking for a free alternative, you could try Google Lighthouse or PageSpeed Insights. Other great apps like User Probe are GTmetrix, WebPageTest, Yellow Lab Tools and Pingdom Website Speed Test.
Website speed test, DNS lookup service incl EDNS client subnet, fast geolocation for IP or hostname, HTTP response headers, FREAK attack tester and more.



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




Prafero is an all-in-one website intelligence platform for auditing any site in one place. It analyzes SEO, performance, security, DNS, and tech stack signals, then turns them into clear insights so founders, marketers, developers, and agencies can make faster website decisions.




PSI Lynx is a SaaS platform for running bulk Lighthouse and PageSpeed audits across many website pages. It helps SEO teams, developers, agencies, and business owners monitor Core Web Vitals, track performance history, and catch regressions after releases, plugin updates, design...


