web.dev is described as 'What is web.dev? web.dev is the ultimate resource for developers of all backgrounds to learn, create, and solve on the web. It's meant to not only educate developers, but help them apply what they've learned to any site they work on, be it personal or business' and is an website in the OS & Utilities category. There are more than 25 alternatives to web.dev, not only websites but also apps for a variety of platforms, including SaaS, Firefox, Google Chrome and Mac. The best alternative is Google Lighthouse, which is both free and Open Source. Other great sites and apps similar to web.dev are PageSpeed Insights (Free, Open Source), GTmetrix (Freemium), ahrefs (Paid) and WebPagetest (Free, Open Source).
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.
Use this free Website Speed Test to analyze the load speed of your websites, and learn how to make them faster. Nobody Likes a Slow Website We built this Website Speed Test to help you analyze your website load speed.
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).