The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links, images, CSS, script and apps from an SEO perspective.
Pulno is a website audit tool which checks for SEO related issues and sends comprehensible tips to improve on-page SEO with page speed optimizer (CSS and image file optimization), meta tags and unique text analyzer.
Xenus Link Sleuth checks Web sites for broken links. Link verification is done on "normal" links, images, frames, plug-ins, backgrounds, local image maps, style sheets, scripts and java applets.Discontinued
Last updated in 2010
Open-Source Python Based SEO Web Crawler Free SEO Analysis Tool Made by SEOs for Digital Marketing Experts
Analyse and improve your onsite SEO Audit and identify any server issues Extract any on-page information you need.
Vovsoft SEO Checker is an easy to use website crawler, able to scan both small and large websites efficiently, while allowing you to find broken links, analyze the results in real-time, gather on-page SEO data, distinguish internal and external links, classify dofollow and...
Boost your SEO, speed and security: Checkbot for Chrome crawls your site to test you’re following over 50+ best practices. Test 1,000s of pages in minutes for broken links, duplicate content, invalid HTML, insecure forms, redirect chains and more.
Real-time SEO Auditing & Monitoring Platform — Because search engines never sleep.