Web performance tools
A curated list of 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.
Make employees, applications and networks faster and more secure everywhere, while reducing complexity and cost.
Guidance to build modern web experiences that work on any browser.
Automated auditing, performance metrics, and best practices for the web.
This page lists out and explains all the performance metrics provided by Vercel's Speed Insights feature.
System font stack CSS organized by typeface classification for every modern OS. The fastest fonts available. No downloading, no layout shifts, no flashes
See inside any stack, any app, at any scale, anywhere.
Make your website faster and improve user experience. Optimize Core Web Vitals and rank higher in Google. Get alerts when your site is too slow. Free 14-day trial.
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.
Use Cloudflare Zaraz to instantly 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, you check out this article to optimize your app performance with dynamic imports: https://lightspeed.run/blog/improve-nextjs-performance-dynamic-imports