Every check has a rationale. Every auto-fix has a preview and an undo. No black boxes.
Crawlability, indexability, render path, performance signals.
Heading hierarchy, meta descriptions, keyword positioning, readability.
Internal graph, broken links, anchor diversity, depth from home.
GEO / AEO / AIO — structured signals AI engines actually consume.
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Find them in 90 seconds. Fix the auto-fixable ones in another two minutes. Free forever.