SiteGuru provides useful information to help improve a website's speed and ranking.

Provides a solid foundation of issues in an organized (prioritized) list of things to do for a given website. Crawls entire site and finds pages you didn't know existed. Depends on your plan if you get the complete picture on all pages, but you at least are aware of the site structure (even have a tree view). When combined with other tools, you know you are covered.

I was pleasantly surprised by SiteGuru - it has an intuitive UX and very clever workflow which sends you emails to "guide" through the SEO process - great for beginners. It's a lovely, clean, interface and very easy to understand. It also integrates with Google Analytics and Site Console for further analytics.