What Yahoo Ad Monitoring does
Yahoo Ad Monitoring is a crawler that fetches the landing pages of ads submitted to Yahoo advertising services. The landing page content is used to improve the accuracy of ad listings for the page and the resulting user experience. Which pages it crawls is determined by the submitted ads: each ad's referenced landing page is the page that gets fetched. It uses separate desktop and mobile user-agent strings, both containing "Yahoo Ad Monitoring" and a link to Yahoo's help page.
How to identify Yahoo Ad Monitoring
Temso identifies Yahoo Ad Monitoringtraffic by matching the request's User-Agent header against this pattern. User-agent strings can be spoofed, so treat a match as an indication, not proof.
Yahoo Ad [Mm]onitoringYahoo Ad Monitoring FAQ
What is Yahoo Ad Monitoring?
Yahoo Ad Monitoring is a Yahoo crawler that fetches the landing pages of ads submitted to Yahoo advertising services. The landing page content is used to improve the accuracy of ad listings and the resulting user experience.
Can I block Yahoo Ad Monitoring with robots.txt?
Yahoo's documentation does not publish a robots.txt token for this crawler or state whether it obeys robots.txt rules. It only fetches landing pages referenced by ads submitted to Yahoo, so requests from it correspond to ads that point at your pages rather than general crawling of your site.
About Advertising Bots
Bots run by ad platforms to check landing pages, verify ad placements, and analyze content for brand safety and targeting.
If you run ads on a platform, its ad bots usually need access; blocking them can break ad approval and quality checks for your own campaigns.
