
Key takeaways
- The Search Status Dashboard dates the rollout from 12 December 2024 to 18 December 2024, a 6-day run.
- Google estimated up to two weeks, so it finished well ahead of that estimate.
- It started one week after the November 2024 core update completed on 5 December 2024.
- The December 2024 spam update began on 19 December 2024, the day after this one finished.
- Google published no dedicated blog post and no impact figures for this update.
What Google changed
Google announced the December 2024 core update on the Search Status Dashboard on 12 December 2024 with a one-line entry: “Released the December 2024 core update.” It did not publish a separate Search Central blog post describing what changed.
Google describes core updates in general as “significant, broad changes to our search algorithms and systems,” made several times a year to keep delivering helpful and reliable results. Nothing Google published names a specific system or type of content this update changed.
When it rolled out
The Google Search Status Dashboard logged the release on 12 December 2024 at 07:46 PST with the note that “the rollout may take up to 2 weeks to complete.” It finished early: Google posted on 18 December 2024 that the rollout was complete as of that day, a total of 6 days.
It sat between two other updates. The November 2024 core update completed on 5 December 2024, and the December 2024 spam update was released on 19 December 2024, the day after this one finished. Neither overlapped it, but a ranking change in December 2024 may come from any of the three.
What is known about its impact
Google did not publish impact figures for this update. Its own framing is that core updates “don’t target specific sites or individual web pages,” and that pages which move down aren’t necessarily bad; other pages may simply serve the searcher better. Treat any percentage you see attributed to this update as a third-party estimate, and check its method.
What site owners should do
With no update-specific post, Google’s standing core update guidance is the advice that applies:
- Confirm the rollout has finished, then wait at least one more full week.
- Compare the week after with a week before the update began, not with the rollout window.
- A small drop (position 2 to 4) needs no drastic action; a large, sustained drop warrants a site-wide self-assessment against Google’s helpful content questions.
- Avoid quick fixes. Improve content in ways that help readers; delete content only as a last resort.
- Recovery can take several months and may not show until a later core update.
How to check whether it affected you
In Search Console, compare clicks for the week of 5 to 11 December 2024 with the week of 12 to 18 December 2024, then with the weeks after 26 December 2024 once the spam update had also finished. Look at Web, Image, Video and News search types separately. The Google Algorithm Updates timeline lists every confirmed update with its dates, so you can see how closely the late 2024 rollouts sit together.
Related updates
- The November 2024 core update was the core update before it.
- The March 2025 core update was the next one.
- The December 2024 spam update started the day after it finished.
The evidence
- Type
- core update
- Started
- 12 December 2024
- Completed
- 18 December 2024
- Rollout
- 6 days, 4 hours
- Confirmed by
- Search Status Dashboard
Sources
- 1.Released the December 2024 core update (incident) - Google Search Status Dashboard, December 12, 2024Primary
- 2.Google Search's core updates and your website - Google Search CentralPrimary
Frequently asked questions
When did the December 2024 core update start and finish?
The Google Search Status Dashboard records the release on 12 December 2024 at 07:46 PST and says the rollout was complete as of 18 December 2024, a 6-day run.
Why were there two core updates so close together in late 2024?
Google did not explain the timing on the dashboard. The November 2024 core update completed on 5 December 2024 and this one was released a week later, on 12 December 2024.
How do I separate this update from the December 2024 spam update?
They ran back to back. The core update covered 12 to 18 December 2024 and the spam update 19 to 26 December 2024, so compare weeks on either side of each date range.
What should I do if my site dropped during the December 2024 core update?
Google's core update guidance is to wait at least a full week after the rollout finishes, compare that week with a week before it began, and only do a deeper assessment for large, sustained drops.
About the author

Founder, UpgradIQ FZC LLC
Adam Hafez works on technical SEO and search measurement: how pages get crawled, indexed, ranked and now quoted by answer engines. He founded UpgradIQ, which reads Google Search Console and GA4 to tie ranking movement back to the changes that caused it. He publishes what the data supports and states the limits of it.
- Technical SEO
- Search Console and GA4 measurement
- Answer engine optimization
- Structured data
The briefing
Only what actually changed in search, delivered in full by RSS, Atom or JSON feed.
FollowRelated reading
Austin update (2004): what was reported and what it means now
Austin was an unconfirmed Google ranking shake-up first reported on 24 January 2004. Google never confirmed it; WebmasterWorld named it.
BERT update (2019): what it changed and what it means now
Google announced BERT on 25 October 2019. It first helped with 1 in 10 US English searches and by 2020 was used in almost every English query.
Bourbon update (2005): what changed and what it means now
Bourbon was a staged 2005 Google update that a Google employee described in forum posts as 3.5 improvements in search quality.
December 2017 updates (Maccabees): what Google said and what to do
Google confirmed several minor search improvements in mid-December 2017, not one update. Search Engine Roundtable nicknamed the changes Maccabees.



