MetricRaven

AdIdxBot

Microsoft · Other bots · User agent + IP range

About this crawler

Microsoft Advertising's crawler that checks ads and their landing pages.

Usually means: A product is checking the page for a specific job: an ad review, a link preview, a feed or an SEO index.

User agent

AdIdxBot

MetricRaven matches this token anywhere in the request's user agent, ignoring case. Operators add version numbers and browser text around it, for example "AdIdxBot/1.0".

IP verification

Verified when the user agent and the IP range both match

  1. 1User agent

    The request's user agent contains AdIdxBot.

  2. 2Request IP

    Your server-side tracker sends the IP that made the request.

  3. 3Range check

    The IP is compared with the ranges Microsoft publishes, refreshed twice a day.

Range sources

Control it in robots.txt

User-agent: AdIdxBot
Disallow: /private/

Well-behaved crawlers re-read robots.txt within a day or so.

Questions

What is AdIdxBot?
Microsoft Advertising's crawler that checks ads and their landing pages. MetricRaven groups it under Other bots: ad checks, link previews, feed readers, SEO tools and other bots.
How do I verify that a request really comes from AdIdxBot?
Check both the user agent and the IP. Requests from AdIdxBot contain "AdIdxBot" in the user agent and come from the IP ranges Microsoft publishes (https://www.bing.com/toolbox/bingbot.json). A request with the name but another IP is likely spoofed.
How do I block or allow AdIdxBot?
Add a robots.txt group for "AdIdxBot" with the paths to allow or disallow. Fetchers that act for a user may ignore robots.txt; block those at your server or firewall instead.
How can I see when AdIdxBot visits my website?
Most crawlers never run JavaScript, so browser analytics miss them. MetricRaven's @metricraven/ai-crawl package reports crawler requests from your server, verifies their IPs against published ranges, and shows which pages each crawler reads.

See when AI assistants and crawlers read your site

Add one line to your server and MetricRaven shows which assistants, search engines and training crawlers request your pages, which ones are IP-verified, and the URLs they expected to find, including 404s.