Here is a quick overview of the best website performance tools in 2021. The following tools analyzes your website and then offer suggestions to improve its page loading speed and SEO.
1. Google PageSpeed Insights

Google PageSpeed Insights analyzes the content of a web page, then generates suggestions to make that page faster.
2. GTmetrix

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.
3. WebPageTest

WebPageTest lets you run a free website speed test from around the globe using real browsers at consumer connection speeds with detailed optimization recommendations.
4. Pingdom Tools

Pingdom Tools lets you analyze the load speed of your websites.
5. Uptrends

Uptrends analyzes your website on an elemental level. See exactly what slows down your website and get tips to improve your website performance.
6. Dareboost

Dareboost is an all-in-one service for website speed test, web performance monitoring and website analysis (speed, SEO, quality, security).
7. Bitcatcha

Bitcatcha lets you perform a server speed test to see your server response time around the globe.
8. Dotcom Tools

Dotcom Tools lets you test website and page speed and detect performance issues from around the world.
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