AI Visibility Watch #6 — July 17, 2026: The Citation-Freshness Penalty Is Real

Something quiet is happening in the citation graph

Across the client prompt baskets we track, pages with a dateModified older than roughly 18 months are getting cited noticeably less than they were in Q1. The pages are still indexed. They still rank in classic SERPs. But when ChatGPT Search or a Google AI Overview picks a source to quote, the older page increasingly loses to a fresher one — even when the older page is objectively better sourced.

We first noticed it on a client comparison page that had been top-1 in AI Overviews for "best [category] platform" for eight months straight. It dropped to a supporting citation in late June with no content change on their side. What changed: two competitors published Q2-dated refreshes on their own comparison pages. That was enough.

What the data shows

Aggregated across ~40 tracked prompt baskets in the second half of Q2:

• Pages with dateModified < 90 days old: baseline citation rate.
• Pages 90–365 days old with a visible changelog: −8% citation rate.
• Pages 365–540 days old, no visible refresh: −24% citation rate.
• Pages 540+ days old, no visible refresh: −41% citation rate.

The effect is strongest on ChatGPT Search and Google AI Overviews, meaningful on Perplexity, and barely detectable on Claude — which appears to weight authorship signals more than recency.

Why blanket "last updated" bumps don't work

The obvious hack — bump every dateModified to today across your whole site — is already discounted. LLM crawlers appear to cross-check the visible page content against the claimed date. If the content didn't meaningfully change but the date did, the freshness signal gets ignored (and, anecdotally, the domain seems to get a small trust discount).

What does work: a real, dated changelog entry that names what changed. Even one line ("Q2 2026: refreshed pricing data, added two competitor rows") is enough. It gives the model something to verify.

What to do next week

• Run a quick audit: which of your top-10 traffic pages have a dateModifiedolder than 18 months? Those are your first refresh targets.
• Refresh the content meaningfully — one new data point, one new competitor, one updated stat. Not a paragraph shuffle.
• Add a visible dated changelog line at the top or bottom of the page. This is the signal the models actually verify against.
• Bump dateModified in JSON-LD and your sitemap <lastmod> in the same commit. See our note on schema for AI for the exact fields.

AI Visibility Watch is a weekly Friday issue from Crackle PR. Read the full series.