How different are the Google search results for the same search term for different searchers? Google has shed some light on the extent of the personalisation of SERPs.
The so-called “filter bubble” or “echo chamber” is not just a hot topic because of the influence of Facebook on the US presidential elections.
Just a few days ago, Google’s Danny Sullivan made it clear that Google’s SERPs are rarely and only lightly affected by true personalisation.
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Danny says that previous search behaviour, as well as Google’s knowledge about the searcher, usually doesn’t have a great impact on the sorting of the search results.
However, the location as well as the (browser) language do influence the result lists.
The statement is consistent with our experience: Search results vary continuously in the “Google Everflux“, but this has no relationship to the personalisation of the results lists; It is caused through the updating of Google index data.