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As a result, it may be beneficial to adjust the score of a document based on the difference (in age) from the average age of the result set."– All captions from US Patent Document Scoring Based on Document Content Update The age of a webpage or domain isn’t the only freshness factor.
Search engines can score regularly updated content for freshness differently from "Also, a document having a relatively large amount of its content updated over time might be scored differently than a document having a relatively small amount of its content updated over time." In fact, Google may choose to ignore small changes completely.
Back in 2011, we published a popular Moz Blog post about these “Freshness Factors” for SEO.
Following our own advice, this is a brand new update of that article.
[Estimated read time: 11 minutes] How fresh is this article?
Through patent filings over the years, Google has explored many ways that it might use “freshness” as a ranking signal.