How Fresh Does Your Website Content Need To Be (for Search and AI)?
Do AI assistants prefer to cite fresh content?
When ChatGPT, Perplexity, Gemini, Copilot (and Google AI Overviews) give answers with sources, do they lean toward newer pages than Google’s normal organic search results?
You can read the full, insightful article over on Ahrefs by clicking the link below. Or you can skim over our quick summary to get the gist…
ok, as promised, here’s a super short skimmable version…
The two ‘freshness’ measures they used
Ahrefs calculated:
- Days since publication
- Based on the date Ahrefs first saw the page via their crawler
- Days since last update
- Based on the ‘last published’ date in Ahrefs’ Content Explorer database
Key takeaways from the study
- AI assistants cite fresher content than traditional Google search results.
- Average age of cited URLs:
- AI assistants: 1,064 days (about 2.9 years)
- Google organic SERPs: 1,432 days (about 3.9 years)
- That makes AI citations 25.7% fresher on average
- AI assistants also prefer more recently updated content:
- AI assistants: 909 days since last update
- Google organic SERPs: 1,047 days since last update
- That is a 13.1% difference
- Google AI Overviews and Google organic were the most likely to cite older pages
- ChatGPT was the most likely to cite newer pages
- Perplexity and ChatGPT appear to order in-text references from newest to oldest
Platform-by-platform ‘freshness’ snapshot
Average days since publication
- Google AI Overviews (top 3): 1,432
- Organic SERP: 1,416
- Perplexity (text order): 1,166
- Gemini: 1,118
- Copilot: 1,056
- ChatGPT (references): 1,023
- ChatGPT (citations): 958
Differences vs organic Google (publication date)
- Google AI Overviews (top 3): 16 days older
- Perplexity: 250 days newer
- Gemini: 298 days newer
- Copilot: 360 days newer
- ChatGPT (references): 393 days newer
- ChatGPT (citations): 458 days newer
Citation order: a small detail with big implications
Ahrefs found that:
- Google organic results tend to show older content higher up
- Most AI assistants show a relatively flat pattern by position
- But Perplexity and ChatGPT show signs of intentional age-related ordering, with newer sources cited first in their in-text references
Final thoughts and cautions (from Ahrefs)
Ahrefs’ conclusion is basically: freshness seems to help in AI visibility, so regular updates may bring benefits.
But they add important caveats:
There is an opportunity cost: many brands may get better results creating new, high-quality content than updating extremely frequently
The average cited age is still 2.9 years, so AI assistants still cite long-lived content
Google is least influenced by freshness, and Google is still where most searches happen
Freshness is only one factor
Updating low-quality or irrelevant pages constantly is not going to magically improve AI visibility
Want more? Check out all Carefully Curated Content here.
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