April 6, 2026
It’s not uncommon to publish something great and watch your rankings soar, only for them to drop off again a year or so later. And for years, the standard advice to combat this has been a relatively vague suggestion to ‘refresh’ your old and outdated content. But, what do we actually mean by a content 'refresh'? Is updating the publish date, fixing a few typos, and adding in new references really enough, or do you need to rewrite the entire piece?
Thanks to a new study from RepublishAI, we finally have some solid data on the matter. The study tracked nearly 15,000 URLs across 20 different industries over just 76 days, comparing pages that were updated against a control group of pages that were left untouched.
The findings have told us a lot about how we should approach content maintenance. Let’s explore.
The most important takeaway from the study is that minor tweaks are effectively useless. If you are only changing 0-10% of a page, like updating a statistic for relevance or tweaking a headline, search engines barely take notice. Pages with minor updates still lost rankings over time.
There’s only a notable difference when you hit the 31 - 100% expansion mark.
Pages that added between a third and double their original word count saw massive, statistically significant ranking improvements. On average, these substantially expanded pages jumped up by 5.45 positions. When you factor in the natural decay of the control group (which lost an average of 2.51 positions), the net difference is an exceptional eight-position gain.
If, for example, you have a 1,500-word article that’s valuable but is losing traffic, you can’t just polish it. You need to add around 500 to 1,500 words of entirely new, relevant content that answers new questions and genuinely improves the value of the page.
Even if you don't immediately have the resources to double the length of your content, the study highlights the damage of doing nothing at all.
Untouched content drops an average of 2.5 positions over a 76-day window. Nowadays, in a time where we can no longer rely on the ten blue links, moving from position three down to position five can slash your organic traffic by half. However, the data showed that the act of updating content reduced that natural ranking decay by 87%. Regular maintenance is crucial for defending yourself against ranking decline.
We’ve always suspected, but this data confirms it - superficial content refreshes just won’t cut it. This study shows that Google’s algorithms are looking for substantial, meaningful improvements before they reward an older page (and this study was over only 76 days!) with renewed visibility.
Don’t waste your time fixing typos on old blog posts. Instead, identify which high-value pages are decaying, commit to expanding them by at least a third, and give the search engines a genuine reason to rank the piece again.
If you need expert help revitalising your old content, don’t hesitate to get in touch with us today!
