Site Audit by Ahrefs - Cloud based website analysis for 100+ SEO issues
Free SEO Checker by Spotibo - An SEO checker that analyses based on Google's algorithm 👀
Easter Eggs by HoverSignal - Boost engagement & SEO with hidden presents on your website
SEO Analyzer By Neil Patel - A free SEO analyzer for your site
OnCrawl - OnCrawl is a SEO crawler and log analyzer that helps you improve your SEO performance. Increase traffic, rankings & revenues. Start your 14-day free trial.
Rank Math SEO - A FREE powerful and lightweight SEO plugin for WordPress