Google spokesperson confirmed to the Search Engine Journal about minor changes made to the core algorithm this month. He said, “We released several minor improvements during this timeframe, part of our regular and routine efforts to improve relevancy”.
Many websites experienced volatility mainly from December 12-14.
Danny Sullivan, Google’s public liaison for search, in a Twitter post, made it appear less important. He said, “Reports calling this a single “update” or calling it “Fred” don’t reflect what we actually said: there were several minor changes that happened as they routinely do in any particular week.”