5 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
The last-modified response header of a URL: whether it is present, its value, and a one-line reading of what the value means (or the risk of its absence for security headers). One header, one answer, for audits and monit...
Change watch for response header last modified: runs the check, compares it with the result from your previous call for the same url (kept 90 days) and returns the current answer, changed true/false, the fields that chan...
Change watch for detect page last modified: runs the check, compares it with the result from your previous call for the same url (kept 90 days) and returns the current answer, changed true/false, the fields that changed...
Detect the page's last modified: fetches the URL and answers this one question from markup, headers and text, with the evidence. Cheap classification signal for crawlers and content pipelines. $0.01 per page.
Bulk detect page last modified: up to 20 urls in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for...