Frontend Robot
Testim
Ghost Inspector
Selenium
Cypress.io
TestingWhiz
QA Wolf
CrossBrowserTesting
Monitoshi
Pingdom
UptimeRobot
StatusCake
Monitis
Uptime.com
RapidSpike
Site24x7
Frontend RobotTestim - Stable, self-healing, end-to-end test automation via machine learning. Testim helps accelerate the delivery of high-quality software. Speed up test-authoring and improve the stability of automated, end-to-end tests.
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Ghost Inspector - Easily create automated browser tests for your websites and web apps. Ensure everything works and looks the way it should. No coding required. 14 day free trial!
UptimeRobot - Free Website Uptime Monitoring
Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
