Orphaned Content Report
Adds Tools > Orphaned Content, listing published posts and pages that no other post or page links to, so you can add internal links where they are missing.
Snippet Library
SEO snippets for WordPress
Snippets for search engine basics: meta descriptions, Open Graph tags, structured data, noindex rules and robots.txt changes. Lightweight options for sites that do not run a full SEO plugin, or need one specific fix.