Google announced the Google December 2025 core update on Thursday afternoon, December 11th, and it already has a significant impact on Google Search results.
Google officially announced the rollout of the December 2025 core update on Thursday at around 12:25 pm ET.
Google updated its core update documentation to say it does smaller core updates and does not announce those updates. This is not new; Google told us this back in 2019. What is new is that Google added it to its search developer documentation.
It was a heated weekend, the Google Search ranking volatility was pretty heated and there was a lot of chatter within the SEO industry. Not all the tools are showing big swings but many are. And everyone is asking, what happened with Google confirming core updates – is that over?
I am seeing some signs of a Google Search ranking update and intense volatility that kicked in late yesterday. The SEO community started chattering about it over the past several hours and some of the tools are showing a spike in volatility with the Google search rankings.
Google may have pushed out a Google search ranking update over the past couple of days. Although the chatter was somewhat quiet, it picked up today and some of the tools are also picking up on an update. I suspect the update and volatility started a couple of days ago, maybe on Monday, November 24th.
I am seeing some signs of a Google search ranking update over the past day or so but the chatter is super limited right now. Many of the tools spike yesterday but like I said, the SEO community chatter was calm
We are seeing some big movement and volatility in the Google Search results again, this one kicking up more yesterday, November 12th. This may be a continuation of the ongoing Movember update, which I covered over the weekend.
Starting maybe late Thursday, into Friday, November 7th, I started to feel a Google Search ranking update and volatility brewing. Like I’ve been saying since the num=100 parameter change, it has been harder to validate those feelings, but based on the chatter I have been seeing in the SEO community and some of the third-party Google Search tracking tools, I think there was a Google update around November 7, 2025.
There may have been another Google Search ranking algorithm tweak around October 28th or so. I am seeing some rumblings both within the SEO community chatter and the third-party Google tracking tools. It seems some are noticing big search ranking swings around October 28th.