3 silent SEO killers I only found by accident

Spent an afternoon trying to figure out why my site wasn't showing up on Google at all; it turned out it was three separate silent failures stacked on top of each other: an inherited domain still carrying the previous owner's search history, my own middleware redirecting public pages to a login wall before Google could ever see them, and a pricing page that had gone stale months ago.

None of it was a "bug" in the traditional sense; everything worked fine for a logged-in user clicking around. It just didn't exist for anyone finding it cold. Google Search Console's coverage report was the only thing that actually surfaced it, worth checking even if your site "feels" fine.