Matt Diggity:
"Google recently gave some more insight into the latest algo update. They’ve said 3 things that are worth knowing. The first thing is, it’s not you… it’s them."
“these are general algorithm updates that we make from time to time with regards to search. And it’s not like your site is worse or different in any way. It’s essentially our algorithms are re-evaluating what we think makes sense what we think is relevant for search results for specific queries and users.”
"So, your site might not have changed but the way Google perceives your site when compared to competitors and relevancy might have changed.
And the relevancy point is the 2nd issue.
Google has spent a lot of time assessing the types of content users click on when they make specific searches. They’ve now used that data to redefine what they think people are looking for when they make a specific search.
Thirdly, the change is
user relevancy.
Google is now including more historical data in their search on a user by user basis. In other words, one user might get a slightly different set of results compared to another depending on their search history.
This could have major implications on ranking for certain websites..."