Later today, we are releasing a broad core algorithm update, as we do several times per year. It is called the December 2020 Core Update. Our guidance about such updates remains as we’ve covered before. Please see this blog post for more about that:
What webmasters should know about Google’s core updates
Official news on crawling and indexing sites for the Google index
webmasters.googleblog.com
7:34 AM · Dec 3, 2020
The December 2020 Core Update is now rolling out live. As is typical with these updates, it will typically take about one to two weeks to fully roll out.
10:16 AM · Dec 3, 2020
...This update, so far, and it is early, seems to have the teeth of a true Google broad core update. Some sites are reporting huge wins or losses, like over 30% or more and it is less than a day since it began to roll out.
We have been tracking many Google algorithm updates that have gone unconfirmed since the May 2020 update, including one over the past few days. It seems the updates we noticed earlier this week are unrelated to this December 2020 core update...
...If you now look at the tracking tools, they all generally show big movement again after four to five days of very low volatility after December 4th, we are seeing a spike again after December 10th.
Many are saying they are seeing reversals from what rolled out on December 3rd and December 4th. Some are saying they saw deeper hits or better gains. So I guess this does feel like the second wave of this December 2020 core update...
Google has finished rolling out the Google December 2020 Core Update on December 16th. It began rolling at around 1pm ET on December 3rd and took 13 days to fully roll out, which is just about the two-week timeframe Google has given us for the core update rollouts....
There seems to be significant SEO community chatter along with most of the tracking tools showing big volatility in the Google search results in the past 24-hours. This comes just a day or so after Google confirmed the December 2020 core update is done rolling out ...
