[ free tool ]
When was this page published or updated?
Enter a URL to see the publication and update dates the page itself declares, how long ago that was, and which part of the page the date was read from. No date is guessed.
What it does#
- Reads the page through Clawifi and reports
published_atandmodified_at, each in UTC when the page gives a time zone, and how long ago that was. - Takes each date from the first source that has one: the page’s JSON-LD (
datePublished,dateModified), then date meta tags in the<head>(such asarticle:published_time), then a<time>element marked as the publication or update date in the page’s article. - Uses the server’s
Last-Modifiedheader for the update date only when the page has none, and not when the header just says “now”. Shows the page’s title and canonical address too.
Limits#
- A date written only as text (“Updated last week”) is not read; neither are dates in comments, sidebars or related-article lists.
- A page that lists several articles with different dates, such as a blog index, gets no publication date.
- The dates are what the page declares. Some sites update the date without changing the content, or the other way round.
- 12 runs a minute per address, shared with the other free tools.
Do this from your agent#
Every Clawifi page read carries these fields: published_at, modified_at, fetched_at and date_source. The hosted MCP server’s scrape_url returns them without a key as a trial (12 a minute and 50 a day per address).
scrape_url(url="https://example.com/blog/post", formats=["metadata"])curl https://api.clawifi.dev/scrape \
-H "Authorization: Bearer $CLAWIFI_API_KEY" \
-H "Content-Type: application/json" \
-d '{"url":"https://example.com/blog/post","formats":["metadata"]}'from clawifi import Clawifi
client = Clawifi() # reads CLAWIFI_API_KEY
page = client.scrape("https://example.com/blog/post", formats=["metadata"])
print(page.get("published_at"), page.get("modified_at"), page.get("date_source"))Read more: Fetch and scrape · Changelog: dates in 1.7.0 · Remote MCP · Docs · Pricing
Questions#
How can I tell when a web page was last updated?
Enter its URL above. The tool reads the dates the page declares in its structured data, its meta tags or a marked <time> element, and falls back to the server’s Last-Modified header for the update date.
Why does the tool say no date was found?
The page carries no date in its markup and its server sent no usable Last-Modified header. Dates written only in the visible text are not guessed, because guesses are often wrong on forums, card lists and footers.
Which date do search engines and AI tools use?
Each one decides for itself. Declaring datePublished and dateModified in JSON-LD and showing the same dates on the page gives them one consistent answer to read.
Why do agents care about page dates?
An agent answering a question about prices, versions or news needs to know how fresh its source is. Clawifi returns published_at and modified_at with every page so the agent can say how current its answer is.