Web performance tools
A curated list of the best tools to optimize and monitor your page performance and Core Web Vitals.
Page speed monitoring tool to optimize and improve your website performance and Core Web Vitals.
lightspeed.run
Make employees, applications and networks faster and more secure everywhere, while reducing complexity and cost.
cloudflare.com
Guidance to build modern web experiences that work on any browser.
web.dev
Automated auditing, performance metrics, and best practices for the web.
github.com
This page lists out and explains all the performance metrics provided by Vercel's Speed Insights feature.
vercel.com
pagespeed.web.dev
System font stack CSS organized by typeface classification for every modern OS. The fastest fonts available. No downloading, no layout shifts, no flashes
modernfontstacks.com
See inside any stack, any app, at any scale, anywhere.
datadoghq.com
GTmetrix is a free tool to test and monitor your page's performance. Using Lighthouse, GTmetrix generates scores for your pages and offers actionable recommendations on how to optimize them.
gtmetrix.comUse Cloudflare Zaraz to optimize your third-party scripts, such as Google Analytics, for better performance and faster load times. To learn more, check out this article: https://lightspeed.run/blog/optimize-google-analytics-performance
Check out the Modern Font Stacks website (https://modernfontstacks.com/) to find system fonts that eliminate the need for downloads, boosting overall performance of your website and reducing load times.
If you are using Next.js, check out this article to optimize your app performance with dynamic imports: https://lightspeed.run/blog/improve-nextjs-performance-dynamic-imports