# adidxbot

Operator: Microsoft
Purpose: Ad review
Reviewed: 2026-09-14
HTTP identifier: adidxbot
robots.txt token: adidxbot

## What is adidxbot?

Checks landing pages for Microsoft advertising.

## How to identify it

Look for the adidxbot identifier in a request’s User-Agent. This is a name match, not identity verification. Version strings may change.

## How to check identity

Use Microsoft’s documented bot verification procedure and current IP information; do not trust the User-Agent alone.

## Access and robots.txt

Microsoft’s robots.txt tester supports AdIdxbot. Test the named-client rules against your advertising landing pages.

Optional full-site opt-out; merge with existing rules only if intended. Not a security control.

```text
User-agent: adidxbot
Disallow: /
```

## What it means in your analytics

Ad checks can appear on campaign URLs that receive little organic crawling.

## Useful measures

Landing-page responses; Redirect chains; Failed checks.

## What to check next

Test the advertised URL and all redirects before broadening crawler access.

## Sources

- [bing.com](https://www.bing.com/webmasters/help/which-crawlers-does-bing-use-8c184ec0)
- [bing.com](https://www.bing.com/webmasters/help/robots-txt-tester-623520ca)

Operator facts are source-backed; interpretation and actions are Apostl guidance.

## Related profiles

- [bingbot](https://apostl.dev/bots/bingbot)
- [MicrosoftPreview](https://apostl.dev/bots/microsoftpreview)
- [OAI-AdsBot](https://apostl.dev/bots/oai-adsbot)

[Start measuring agent traffic](https://apostl.dev/start/agent-analytics)