Search personalization means changing search results based on information about the individual searcher. Location and language have the biggest effect in Google Search, and Google describes these as context rather than personalization. Google has said it personalizes results based on past activity only in limited ways, and that results for most queries are largely the same between users in the same place. Feeds like Google Discover are much more personalized.
What changes results
Several kinds of context can change what a given person sees for the same query.
- Location: country, city and sometimes precise position for local queries
- Language: interface and query language
- Device: mobile and desktop layouts differ
- Past activity: limited personalization if the user allows it
- Safe search and other settings
Why it matters for measurement
Your own searches are not a reliable check of rankings. You may be in a different place from your buyers, signed in, and have visited your own site many times. Rank trackers query from set locations without personalization, and Search Console reports aggregated data from real users, which is the better source.
Personalization in other surfaces
Google Discover, YouTube recommendations and AI assistants with memory are far more personalized than web search. Performance on those surfaces varies much more between users and is harder to predict.
Example
The founder who always ranks first
The founder of hypothetical startup Cardmorrow checks Google and sees the company first for its main keyword. Search Console shows an average position in the teens. The difference comes from location, history and repeated visits; the team agrees to use Search Console and a neutral rank tracker as the reference.
Common mistakes
Checking rankings from your own browser
Location and activity make your view unrepresentative. Use tools that query neutrally and data from real users.
Questions
It removes signed-in history, but location and language still apply. It is closer to neutral but not identical to what your buyers see.
