Page Publish Date Finder - Article Date & Last Modified
Pricing
from $2.80 / 1,000 page dateds
For AI agents citing web pages: when a page was published and last updated, with the evidence (JSON-LD, meta tags, <time>, text, URL, Last-Modified) and a high/medium/low confidence. On 28 pages with a known date it answered 27, all the right day. Optional Internet Archive first-seen date.
Pages to date, one per line (1 to 1,000 per run). A URL without http:// or https:// is read as https://. The same URL given twice is read and charged once. If this is empty, the example page https://blog.apify.com/fixing-actors-invisible-to-agents/ is used.
Look up the first successful capture of each URL in the Internet Archive Wayback Machine (official CDX API). It tells you the page existed no later than that date (publishedNoLaterThan), which helps when the page itself has no date, and it flags pages whose stated publish date is later than their first capture. Slower (the archive takes 1 to 60 seconds per URL) and charged separately, only when a capture is found.
Look for the page's (and Google News publication date) in the sitemaps listed in robots.txt, opening at most 4 sitemap files per page. Off by default: in a test of 15 pages the sitemap added a date for only 2, and both already had a date on the page, while large sites can have sitemaps of tens of megabytes.
Return the list of every date found on the page with where it came from (JSON-LD field, meta tag name, element, visible label, URL pattern, HTTP header). Turn off for smaller rows with only the chosen dates.
Return only pages whose chosen publish date or last-modified date changed since the last run with the same watch name (plus pages new to the watch). The first run returns every page as the starting point. A change is re-read after 1.5 seconds and reported only if the second read shows the same dates. A run in which nothing changed returns a free row saying so and charges only the run start fee.
Name of the remembered state used to compare runs (letters, digits, dot, dash, underscore; up to 40). Setting it (or turning on monitor mode) fills changeType and the previous dates. Use a different name for each list of pages you track on its own schedule. With monitor mode on and no name, the name "default" is used.
Start this watch over: forget the remembered dates before this run, so every page is returned as a first check.
How many pages are read in parallel (1 to 8).
