BuiltWith.com
Web technology information profiler tool. Find out what a website is built with.
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WebRankStats.com
Domain Stats and Website Stats like Google Pagerank, Alexa, Compete and Quantcast Rank, pages indexed and backlinks in Google and Bing of the website. Also get HTTP Header and DNS Record analysis. A free SEO tool, domain stats tool and website stats checker tool.
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Pingdom.com
Web technology information profiler tool. Find out what a website is built with.
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Google Developers
Google PageSpeed Insights is a browser extension for Google Chrome and Firefox. It runs a number of diagnostic tests against a web page, and analyzes the page's performance on a number of "rules" that are known to speed up page load time. The rules are based on general principles of web page performance, including resource caching, data upload and download size, and client-server round-trip times. They examine factors such as web server configuration, JavaScript and CSS code, image file properties, and so on.
For each rule, PageSpeed gives a general score, using a simple red-yellow-green grading scheme, and suggests specific techniques for correctly implementing each rule. It also provides some automatic optimization of external resources included on a page, such as minifying JavaScript code and compressing images.
For each rule, PageSpeed gives a general score, using a simple red-yellow-green grading scheme, and suggests specific techniques for correctly implementing each rule. It also provides some automatic optimization of external resources included on a page, such as minifying JavaScript code and compressing images.
Go to the SEO Evaluators page for a full list of 20+ website SEO evaluators.
