Freshness algorithm
Also called: freshness system, freshness update, QDF, query deserves freshness
Google's freshness algorithm is a group of ranking systems, often called query deserves freshness (QDF), that temporarily favor recent content for queries where users expect up-to-date results, such as breaking news, recurring events, and fast-changing topics. It has little effect on evergreen queries.
Google rolled out the modern freshness algorithm on November 3, 2011, in an update announced by engineer Amit Singhal. Google said it affected around 35% of searches and noticeably changed results for roughly 6 to 10% of queries. It leaned on the Caffeine indexing system, which let Google index new pages fast enough to surface them while a topic was still moving.
The idea traces back to “query deserves freshness” (QDF), a concept Singhal described in 2007. Instead of treating every query the same, the system decides how much recency matters for that specific search.
Which queries deserve freshness
Google’s documentation groups the cases where fresher content is expected. Search Central gives the example of a just-released movie (you want current reviews, not old production notes) or a recent earthquake (you want news, not preparedness guides). Practitioners usually sort these into three buckets:
- Recent events: breaking news and trending topics.
- Recurring events: elections, sports scores, annual conferences.
- Frequent updates: product roundups, pricing, “best X” comparisons.
Freshness is a query-level signal, not a sitewide boost you can switch on. For evergreen topics, recency carries little weight and older, authoritative pages keep winning. It also does not override trust and relevance: a thin page with a new date will not outrank a deeper, more useful one. Genuine updates, new information, and reworked sections are what the system reads as fresh.
How it affects your traffic
Chasing freshness on the wrong pages wastes effort. If you re-date evergreen pages hoping for a lift, you gain nothing and risk looking manipulative, while your genuinely time-sensitive pages (pricing, comparisons, event pages) quietly decay and slip in rankings. An SEO consulting engagement sorts your catalog into evergreen versus freshness-dependent, sets an update cadence for the pages that actually earn from recency, and drives real content changes instead of cosmetic date swaps. That protects traffic on the queries where Google expects current information, and where AI answer engines tend to pull from recently updated sources.
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