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Website Grader - Grade your website's strengths and weaknesses in seconds.
A1 Sitemap Generator - A1 Sitemap Generator has been in active development and sold since 2005.
PageSpeed Ninja - One-click page speed boost for WordPress
Octopus.do - Build your website structure in real-time and rapidly share it to collaborate with your team or clients. Start prototyping websites or apps instantly.
WebSite Auditor - The techie's SEO spider: find site issues other tools miss