Alternatives to Yellow Lab Tools
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Google Lighthouse
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.
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PageSpeed Insights
PageSpeed is addon for Firebug (debugger addon for Mozilla Firefox ) for analyzing of page loading process and suggesting to webmaster how speed up page loading. Javascript obfuscating, image resizing, CSS merging and vise versa.
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WebPagetest
Run a free website speed test from multiple locations around the globe using real browsers (Firefox, IE, Chrome, Android and iOS) and at real consumer connection speeds. You can run simple tests or perform advanced testing including multi-step trans…
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Yahoo! YSlow
YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. YSlow is a Firefox add-on integrated with the Firebug web development tool. YSlow grades web page based on one of three p…
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Site Relic
Site Toolbox for the website owner, web engineer, SEO analyst, web developer, webmaster and everyone. There are 18 testing tools at the moment including the following. Screenshot Checker - Check how does your website look like from different region …
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StatusCake Tools
StatusCake Tools allows you to check the speed and load time of your website. Simply enter the website URL and check one of the locations from around the world you want the website checked from. The test results allow you to view individual page ele…
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User Probe
It costs a lot to have a slow website. Stop gambling your users will endure slow pages. Start running performance regression now!
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