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freshness

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Use when auditing content pages for freshness signals, setting up HTTP Last-Modified headers in a web server config, or ensuring Article JSON-LD dateModified is updated when CMS content changes.

skills/freshness/SKILL.md

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# Show content freshness signals

Google's Query Deserves Freshness (QDF) algorithm boosts recent or recently updated content for time-sensitive queries. Missing or stale freshness signals mean your updated content competes without the freshness advantage it deserves.

## Quick Reference

- Set the `Last-Modified` HTTP response header and include `dateModified` in Article JSON-LD on all content pages
- Update `dateModified` only when content substantively changes — trivial edits should not alter the date
- For time-sensitive topics (news, tutorials, product reviews), freshness directly influences Google's ranking of your content

## Check

For each article or blog page: (1) Check the HTTP response `Last-Modified` header — is it set and recent? (2) Check the JSON-LD for a `dateModified` property in ISO 8601 format. (3) Is a visible 'Last updated' date shown to users? (4) Is the `dateModified` in JSON-LD consistent with the visible date and the `Last-Modified` header?
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