Does Google favor fresh content?

For some queries. Google says it has query deserves freshness systems that show fresher content where it is expected, such as reviews of a recently released film. For stable topics, an older page that answers well can keep ranking.

Should I update the date on old articles?

Only when you have substantially changed the content. Google's helpful content guidance asks whether you are changing page dates to make them seem fresh when the content has not substantially changed. Dates must reflect real publication or updates.

How do I show Google when a page was updated?

Show a labeled date on the page, such as Last updated, and add datePublished and dateModified in Article or other CreativeWork structured data. Google says the visible and structured dates should match.

How often should I update content for AI search?

Update when the facts change: prices, plans, features, policies, comparisons. Pages that state facts AI engines repeat, like pricing and product pages, deserve the most attention. Changing a few words on a schedule does not help.

AI search glossary

Content freshness: when updated pages matter for Google and AI

Content freshness is how up to date a page's information is, and how clearly the page signals when it was published and last meaningfully updated, which matters most for queries where recent information is expected.

Also called: fresh content, freshness signals, query deserves freshness

Why it matters for AI search

AI engines often answer questions about prices, versions, policies and rankings, where an old page gives a wrong answer. A page with current facts and a clear, honest update date is easier to trust and cite. A stale page about your own product can lead engines to repeat outdated prices or features.

How freshness works in Google

Google's guide to its ranking systems lists "query deserves freshness" systems that show fresher content for queries where people expect it. Its example is a recently released movie: people want recent reviews, not early articles from before release. The same applies to news, prices, software versions and yearly comparisons.

For other topics, freshness matters little. A clear explanation of how compound interest works does not need yearly updates. So freshness is not a general bonus; it depends on the question.

How to signal dates correctly

Google's byline date documentation recommends two things:

A visible date, labeled clearly, such as "Published" or "Last updated".
Structured data using an Article, BlogPosting or other CreativeWork type with datePublished and dateModified. See schema markup.

Google says the visible and structured dates should match, dates must describe the page's own publication or update rather than the events it covers, and future dates should not be used. If Google picks a wrong date, consider removing other dates from the page. An accurate lastmod in your XML sitemap also tells crawlers which pages changed.

What not to do

Google's helpful content guidance asks: "Are you changing the date of pages to make them seem fresh when the content has not substantially changed?" It also warns that adding or removing lots of content just to seem fresh does not help. Change the date when you change the substance.

A practical rule: if a reader who saw the old version would learn something new from the update (a new price, a changed step, a new option, a corrected fact), it is a real update and the new date is honest. Fixing a typo or swapping a stock photo is not.

Why it matters for AI answers

AI engines search the web for many questions and lift facts from what they find. If your pricing page from last year is the clearest source, an engine may quote last year's price. That is often blamed on LLM hallucination when the engine read an accurate copy of outdated information.

Example: a SaaS company changes its plans but leaves an old comparison blog post untouched. AI answers keep citing the old post's prices. Updating that post with the current plans, a "Last updated" line and matching dateModified gives engines a correct source to cite. Prioritize the pages engines quote most: pricing, product specs, policies and comparisons, the same pages that drive AI citations.

Questions

Does Google favor fresh content?: For some queries. Google says it has query deserves freshness systems that show fresher content where it is expected, such as reviews of a recently released film. For stable topics, an older page that answers well can keep ranking.
Should I update the date on old articles?: Only when you have substantially changed the content. Google's helpful content guidance asks whether you are changing page dates to make them seem fresh when the content has not substantially changed. Dates must reflect real publication or updates.
How do I show Google when a page was updated?: Show a labeled date on the page, such as Last updated, and add datePublished and dateModified in Article or other CreativeWork structured data. Google says the visible and structured dates should match.
How often should I update content for AI search?: Update when the facts change: prices, plans, features, policies, comparisons. Pages that state facts AI engines repeat, like pricing and product pages, deserve the most attention. Changing a few words on a schedule does not help.