Overview
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Studies show that users leave a site if it hasn’t loaded in 4 seconds; keep your users happy and engaged by providing a fast performing website!
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List of Website Performance Tools
 
GTmetrix
- GTmetrix uses Google Page Speed and Yahoo! YSlow to grade your site’s performance and provides actionable recommendations to fix issues.
 

Webpage Test
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Webpage Test is an open source project that is primarily being developed and supported by Google as part of make the web faster.
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Run a free website speed test from multiple locations around the globe using real browsers (IE and Chrome) and at real consumer connection speeds.
 

PageSpeed Insights
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PageSpeed Insights analyzes the content of a web page, then generates suggestions to make that page faster.
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PageSpeed Insights measures the performance of a page for mobile devices and desktop devices. It fetches the url twice, once with a mobile user-agent, and once with a desktop-user agent.
 

Pingdom Tools
- Pingdom tools help webmasters and web developers everywhere optimize the performance of their websites.
 

Yellow Lab Tools
- Yellow Lab Tools analyzes a webpage and detects performance or front-end code quality issues.
 - For More Detailed Information on Github
 
