For years, technical SEO has been about crawlability, structured data, canonical tags, sitemaps, and speed. All the plumbing that makes pages accessible and indexable. That work still matters. But in the retrieval era, there’s another layer you can’t ignore: vector index hygiene. And while I’d like to claim my usage of vector index hygiene is unique, similar concepts exist in machine learning (ML) circles already. It is unique when applied specifically to our work with content embedding, chunk pollution, and retrieval in SEO/AI pipelines,…








