In John Mueller’s hangout on 8/13/2021, one webmaster was curious about how Google evaluates website quality changes.
He asked if Google’s evaluation of website quality was correlated to the size of a website and if aggressively deindexing lower-quality pages was a good idea.
John has mentioned previously that it can take months or even up to half a year for Google to re-evaluate the quality of a site and treat it differently in search.
John said that sometimes re-indexing and re-evaluation can be faster, but this is an exception rather than a rule.
This topic comes up at around the 6:16 mark in the hangout: