Google Lighthouse
Description: Google Lighthouse is an open-source automated tool for improving web page quality. It audits for performance, accessibility, progressive web apps, SEO and more.
Type: software
Pricing: Open Source
Pingdom
Description: Pingdom is a website monitoring service that checks uptime, performance, and speed of websites. It provides real-time alerts, detailed uptime and performance reports, and analytics on website issues.
Type: software
Pricing: Freemium