December 2020: Google’s core update lands at the busiest time of year
Covers December 2020. Part of our search timeline: a month-by-month look at the changes that shaped SEO, AI search, paid ads and social media, written in November 2026 for local businesses with the benefit of hindsight.
Quick answer: On 3 December 2020 Google began rolling out a core update, in the thick of the busiest online shopping period of the year. Some UK businesses saw their visibility swing sharply. The lesson still applies: nobody controls when updates land, so a spread of traffic sources and genuinely good quality pages are your best protection.
In this part of our search timeline, written in November 2026, we look back at December 2020. For local firms, December is often busy too: boiler breakdowns, emergency plumbing call-outs and gift voucher sales for salons all peak in winter, so an update at that point can sting.
What Google released in December 2020
This was a wide-ranging change to how Google ranks pages, and it took roughly two weeks to roll out. Google repeated its standard advice: there is no specific problem to fix, so concentrate on the quality of your content.
Why the timing hurt
Businesses relying on organic search to bring in Christmas trade felt it most. Firms that also had paid search running, an email list and plenty of repeat customers were far better shielded from ranking swings in the weeks that mattered most to them.
How to protect your busy season
- Have Google Ads ready to cover your key services, such as emergency boiler repair, if organic rankings slip during your peak.
- Grow an email list and a base of repeat customers well ahead of your busiest months.
- After any update, compare the pages that dropped with competitor pages that rose, and look for differences in quality.
Frequently asked questions
How long does a core update take to finish?
Normally about two weeks. Wait until the rollout is complete before deciding what it did to your site.
Is it possible to recover after a core update?
Yes, usually by improving your pages over time. Any recovery tends to appear at a later core update rather than straight away.
Sources and further reading
- Google Search Central: list of ranking updates
- Google Search Central: what core updates mean for your site
Want help with this? We keep an eye on core updates for local businesses and help you recover if rankings move. See our local SEO service, or Get in touch.
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