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Howdy Notebooker!

This week I went deep on Google’s US Patent 0209838A1 document scoring patent… with one specific question: what does a content refresh actually need to include before Google's freshness system notices it?

H/T to former SEO IRL speaker JC Chouinard who reminded me about this patent with the great video breakdown he posted recently.

The findings are more specific than most people realize. And they matter now more than ever, because a lot of teams are still doing the wrong things. Bumping a lastmod date. Tweaking a sentence. Google explicitly tracks what it calls "update amount" and "update significance," and the patent is clear that small or peripheral changes may not move those scores at all.

People like Lily Ray flagged “artificial refreshening” in her 2025 Mozcon talk where she said:

"I definitely don't recommend what Google calls artificial refreshening, which is to update content or say that content's been updated when you haven't really made substantial changes to the page content. I believe Google has ways of demoting this type of content, which can affect your visibility both in search as well as large language models. It's also just not that great for users. So if you are going to be updating your content, you need to make sure that it is truly updated and that it reflects the most recent and up-to-date information.”

So with that, of course, my question is: ok, agreed, so what’s the minimum viable amount of content we should add to call it a true refresh and how can we do it efficiently.

The patent we’re analyzing today gives us a lot of clues about the minimum viable amount of refreshed content that will qualify us as a “real refresh.”

First, to prove that just changing the lastmod date isn’t going to cut it, here’s how Google can detect a trustworthy “inception date”

I also highly recommend watching this excerpt of JC’s breakdown where he talks about Content Updates:

https://youtu.be/H9YMj7kyw-o?si=YWPsvBknxExtZsvs&t=1296

So What Actually Counts as a Meaningful Refresh?

According to the patent (US 0209838A1), Google doesn't treat all content changes equally. Before updating a document's freshness score, it tests whether the change is significant - defined as affecting a large portion of the document or many different portions of it. Small or peripheral edits may not register at all.

Content refreshes need to be an ongoing thing. In fact, Google loves it when you keep updating your pages over time: