Google released two documentation updates on June 5, 2026: a new page titled “Google Search’s guidance on using third-party SEO tools, services, and advice,” and a revised version of the older “Do you need an SEO?” document that now includes a section on optimizing for generative AI. The move represents Google’s first systematic attempt to define what trustworthy SEO counsel looks like, on the record, in its own documentation.

The new page covers a broad list of tool categories: sitemap generators, indexing directive tools, content generators marketed as “SEO-optimized,” ranking-improvement services, and tools claiming to improve performance in AI Overviews or other generative answer surfaces. For each category, the document prompts site owners to evaluate vendor claims against Google Search Central’s published guidance. According to the document, credible advice either qualifies claims as opinion grounded in data and experience, or cites official Google guidance directly.

Google Search Console is the only tool Google explicitly recommends. The document states clearly that Google does not evaluate or endorse any third-party SEO software, and that no external tool has access to Google’s internal ranking signals. Site owners are advised to treat any vendor claiming Google approval or “accepted” status as a warning sign.

The “Do you need an SEO?” update is more targeted. Its new generative AI section addresses GEO, generative engine optimization, the practice of optimizing for LLM-driven answer surfaces, and AEO, answer engine optimization, optimizing for direct-answer placements. Google frames both as areas where third-party advice should be held to the same verification standard as conventional SEO counsel.

Search Engine Land’s Barry Schwartz reported the updates on June 7, 2026. Search Engine Journal noted that the framing positions Google as the authority over what counts as legitimate SEO, including in the GEO and AEO categories that have expanded rapidly over the past eighteen months.

The skepticism move worth registering here: the document’s trust standard requires third-party advice to cite official Google guidance, but Google’s guidance on GEO is still sparse and evolving. A vendor that closely mirrors Google’s own documentation passes the test almost by definition, regardless of whether the underlying advice produces measurable gains.

The practical consequence for search teams is vendor-stack accountability. Any tool in your contract that makes ranking promises, claims to improve AI Overviews visibility, or markets itself as Google-approved now has a public standard to be held to. Audit your current agreements against this document before your next renewal cycle, and flag any vendor that cannot point to Google Search Central citations as the basis for its methodology.

Reported by Search Engine Land (Barry Schwartz, June 7, 2026) based on documentation published by Google Search Central on June 5, 2026.