Google SEO
October 2015 — yellowHEAD · Dachshund Digital
What did RankBrain bring to search?
RankBrain introduced machine learning into ranking to help process unfamiliar queries, around 15% of the total at the time. It quickly became one of Google's most significant ranking signals.
Further analysis
Use this entry as an audit checkpoint. The cited source establishes the context; the direct answer identifies what to check before choosing an action.
In SFT, this topic relates to Structure. Check whether the signal is visible on the page, connected to the rest of the website and supported by understandable evidence.
Related search terms include RankBrain, machine learning, unseen queries. Use them to describe the issue in a brief, audit or answer page.
Applying SFT
Structure turns a rule into readable architecture: headings, URLs, structured data, visible content and clear hierarchy.