What AdIdxBot does
AdIdxBot is the crawler used by Bing Ads, one of the main crawlers Bing operates alongside Bingbot and BingPreview. It crawls ads and follows through to the websites behind those ads for quality control. It runs both desktop and mobile variants, identifying itself with user agent strings such as Mozilla/5.0 (compatible; adidxbot/2.0; +http://www.bing.com/bingbot.htm). Bing states that robots.txt can be used to control how its crawlers interact with a site, and that crawl rates can be adjusted by the hour with the Crawl Control tool in Bing Webmaster Tools.
How to control AdIdxBot
Target AdIdxBot in your robots.txt with the adidxbot token. Rules apply per bot, so you can allow this one while blocking others, or the reverse.
Allow AdIdxBot
User-agent: adidxbot
Allow: /Block AdIdxBot
User-agent: adidxbot
Disallow: /Bing notes that user agent strings are easy to spoof and directs site owners to the Verify Bingbot tool to check whether a request actually comes from a Bing crawler.
How to identify AdIdxBot
Temso identifies AdIdxBottraffic 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.
adidxbotAdIdxBot FAQ
What is AdIdxBot?
AdIdxBot is the crawler used by Bing Ads. It crawls ads and follows through to the destination websites from those ads for quality control, and it has both desktop and mobile user agent variants that include adidxbot/2.0.
How do I block AdIdxBot?
Add a robots.txt group with User-agent: adidxbot and Disallow: / to block it from your whole site, or list specific paths instead of /. Bing's documentation says robots.txt is the way to tell its crawlers how to interact with your site, and crawl rate (rather than access) can be managed hourly through the Crawl Control tool in Bing Webmaster Tools.
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.
