What are some of the best free SEO Audit tools?

When it comes to free SEO audit tools, one that I always recommend is Screaming Frog SEO Spider. It's incredibly powerful for crawling websites and analyzing huge amounts of technical and on-page data like titles, meta descriptions, headings, response codes, redirects and more. The free version lets you crawl up to 500 URLs which is very generous.

Another great free option is Google Search Console. As an SEO, you absolutely need to be tapping into the wealth of data it provides about your site's search traffic, top pages, impressions, clicks, indexing issues and all the other reports.

For analyzing page speed, which is crucial for SEO, I'd recommend GTmetrix and Google's PageSpeed Insights. They'll analyze your load times and provide detailed optimization recommendations for improving speed.

Google also has some other useful free testing tools like the Mobile-Friendly Test to check how well your pages are optimized for mobile devices and structured data testing tools.

While free tools are limited in scope compared to premium platforms, you can still get a ton of value from using Screaming Frog combined with Google's array of webmaster tools and other free utilities to conduct comprehensive website crawls and identify technical, on-page, and other areas for SEO improvement without spending money.