Google defines spam as deceiving users or manipulating Search, including generative AI responses; violations can lower rankings or remove a site. The policies GEO tactics most often hit are cloaking, hidden text, keyword stuffing, doorway pages, link spam, scaled content abuse and site reputation abuse. Accordions, tabs and screen-reader text are not hidden-text abuse.
Cloaking. Serving AI crawlers or search engines a different page from the one people see fits the definition of cloaking. A keyword-rich version only for bots is one example.
Hidden text. Text placed for machines but not people, such as instructions aimed at AI systems in white-on-white text.
Keyword stuffing. Repeating a query or listing every city or variant you want to appear for.
Doorway pages. One page per near-identical query or city, funnelling people to the same place.
The list overlaps Google’s on cloaking, hidden text, keyword stuffing and link schemes. Sogou’s guidelines are older and say nothing about AI answers or mass-produced content.