· @Peak Marketing
Publish dates and “Last updated” labels matter because they tell people and search engines whether a page can still be trusted. A clear, accurate date helps a reader decide to keep reading. It helps Google choose the right date to show in search results. It also gives AI assistants a reason to cite your page instead of an older one. At Peak Marketing, every blog post we write for law firms and local businesses shows both dates, and we only move the updated date when the content itself changes. Changing a date to look fresh does not work, and Google has said so in plain terms.
The short version: show both dates, keep them honest, and update the page before you update the label.
How readers and Google use the date on a page
People check dates more than most site owners think. Someone searching for how long they have to file an injury claim wants to know the answer is still correct. If the only date they see is from 2019, many of them will hit the back button and pick a newer result. For legal, medical, and financial topics, an old or missing date quietly costs you trust.
Google reads dates for a related reason. Its documentation describes a byline date as Google’s own estimate of when a page was published or updated. Google may show that date in search results when it thinks the date helps the searcher. You cannot force a date into the snippet, but you can make the right one easy to find.
Google’s guidance on this is short and practical. Label dates with clear text such as “Published” or “Last updated.” Keep the date and time consistent everywhere they appear. Do not list a future date, and do not use the date of an event the article describes. If Google keeps picking the wrong date, cut down the number of other dates on the page.
Why dates carry more weight in AI search
AI assistants lean toward newer pages. Ahrefs looked at 17 million citations from ChatGPT, Perplexity, Gemini, Copilot, and Google’s AI Overviews. The pages those tools cited averaged 1,064 days old. Pages in regular Google results averaged 1,432 days. That makes AI citations about 25.7% fresher.
ChatGPT showed the strongest pull toward new content. AI Overviews behaved much like the normal search results and cited slightly older pages on average. Long-lived pages still earned plenty of citations across every platform, so age alone does not knock a page out.
For a law firm or local business, the lesson is simple. A clear “Last updated” date paired with current information gives an AI tool one more reason to choose your page when it builds an answer. A strong page with no visible date, or with an obviously stale one, gives it a reason to look elsewhere.
Published date vs. last updated date
The two dates answer different questions. The published date tells readers how long the page has existed. The updated date tells them when someone last checked that it was still right. Most blog posts should show both.
| Published date | Last updated date | |
| What it means | The day the page first went live | The day the content last changed in a meaningful way |
| When it changes | Never | Only after a substantive edit |
| Schema property | datePublished | dateModified |
| Visible label | “Published” | “Last updated” |
The visible dates should match your structured data. Google recommends marking up articles with a type such as Article or BlogPosting and filling in datePublished, dateModified, or both. A basic version looks like this:
{
“@context”: “https://schema.org”,
“@type”: “BlogPosting”,
“headline”: “Why Publish Dates and Last Updated Labels Matter”,
“datePublished”: “2025-03-04T09:00:00-07:00”,
“dateModified”: “2026-10-20T10:30:00-07:00”
}
Most WordPress SEO plugins generate this markup for you. Check it anyway. Themes sometimes print one date on the page while the plugin outputs another, and that mismatch makes Google guess.
What counts as a real update
Google’s helpful content guidance asks site owners a direct question: are you changing page dates to look fresh when the content has not substantially changed? That question has been in the guidance since the September 2023 helpful content update. Google’s Gary Illyes has also warned that sites caught shuffling dates risk having Google stop trusting their dates at all. A page with no believable date is worse off than a page with an old one.
A change earns a new “Last updated” date when a reader would notice it. Good examples include:
- A law, fee, deadline, or court rule the post covers has changed
- You rewrote a section that was thin, confusing, or wrong
- You added answers to questions clients keep asking
- Statistics, case results, or examples were replaced with current ones
Some edits do not justify a new date. Fixing a typo, swapping a stock photo, or adding the current year to the title tag leaves the substance the same. Leave the date alone for those.
How Peak Marketing refreshes content the right way
Every SEO campaign we run includes content refreshes alongside new posts. The process below keeps the dates honest and the pages useful.
- Find pages that are slipping. In Google Search Console, open the Pages report and compare the last 12 months to the prior period. Look for URLs that lost clicks while their average position held steady. Those pages often lose clicks to a newer-looking competitor.
- Check every fact on the page. For a law firm, that means statutes, filing deadlines, fee figures, attorney names, office addresses, and outbound links.
- Rewrite what needs it. Replace outdated sections, expand thin answers, and add questions that now show up in People Also Ask or client intake calls.
- Update both dates together. Change the visible “Last updated” label and the dateModified value on the same day. Keep the original published date as it was.
- Note what changed. A one-line editor’s note such as “Updated to reflect the 2026 filing fee increase” shows readers and AI tools why the date moved.
- Ask Google to recrawl. Use URL Inspection in Search Console to request indexing for the refreshed page.
This takes longer than changing a date in WordPress. It also holds up, because the page actually deserves its new date.
Keep the dates honest and the pages current
A publish date shows how long a page has been around. A “Last updated” date shows that someone still stands behind it. Readers use both to decide whether to trust you, Google uses them to label your results, and AI assistants tend to favor pages that are clearly current. None of that works if the date moves while the content stays the same.
If your blog has dozens of posts and no clear sense of which ones are out of date, that is a fixable problem. Peak Marketing builds monthly content refreshes into every SEO campaign, with no long-term contract. Reach out to our team, and we will review your top pages and tell you which ones need real work first.
Sources
- Google Search Central, Influence your byline dates in Google Search
- Ahrefs, New Study: AI Assistants Prefer to Cite “Fresher” Content (17 Million Citations Analyzed)
- Wordtracker, Google releases September 2023 helpful content system update
- Hall Analysis, Changing Content Dates Could Hurt You, Says Google’s Gary Illyes
- Practical Ecommerce, SEO: Updating Content for Higher Click-throughs
