AI
RankBrain
Google’s 2015 ML ranking system. History. Not a 2026 lever.
If someone sells RankBrain optimization, leave.
The surviving idea: Google interprets queries, so write for meaning.
Examples
- A 2016 checklist still circulating in a GEO RFP.
Related terms
Algorithm updates
Changes to ranking or retrieval that move Google and, with a lag, what models cite.
BERT algorithm
Google’s 2018-ish language model for search understanding. Historical layer under modern NLP, not something you “optimize for” in 2026.
Semantic search
Matching meaning, not only strings. Embeddings made this default. Your synonyms still help the lexical half of hybrid search.
FAQ
Still on? +
Google’s stack moved on. You don’t tune RankBrain.
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