Internal linking is SEO's most underused ranking lever. LinkSigma fixes that. Our crawler focuses only on main page content — ignoring headers, navs, and footers — to find the most contextually relevant pages to link from to your target. When no anchor fits, AI suggests natural content edits. Work in reverse: link from any source page site-wide. Paste draft articles for pre-publish anchor mapping. Advanced filters let you exclude page types, directories, or categories you don't need.