What is bat.bing.com?
bat.bing.com is Microsoft Advertising’s Universal Event Tracking (UET) tag. “BAT” stands for Bing Ads Tracking.
AdvertisingOwned by Microsoft, based in Redmond.
What it does on a page
It tells Microsoft Advertising which pages you visited and whether you converted after seeing or clicking a Bing ad, and builds remarketing audiences.
Should you block it?
Blocking it doesn’t break sites.
Also seen as
UET tag · bat.js
In the Browser Monster Index
81
checked websites loaded Microsoft (from bat.bing.com or its other domains).
On 16 it loaded before visitors made any choice, and on 10 it was still seen after we clicked reject.
Other domains Microsoft uses: adnxs.com, adnxs-simple.com, clarity.ms, c.bing.com.
See when Microsoft is watching you
Browser Monster shows every tracker on the pages you visit, who owns it and where it sends your data, all worked out on your device.