Vendor guide
Does Microsoft Ads respect opt-outs?
On 13% of the 313 US e-commerce brands we found tracking after an opt-out, Microsoft Ads was one of the tags still firing.
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13%
of brands in our data had Microsoft Ads firing after an opt-out (42 of 313)
US e-commerce brands where Consentinel found trackers still firing after a visitor opted out, by clicking reject or sending Global Privacy Control. Sites that passed aren't in this data, so these figures describe brands that leak, not all brands. Read the full report.
What it is
Microsoft's UET tag reports visits and conversions to Microsoft Advertising (Bing) for targeting and measurement.
Why it keeps firing
Often added once for a campaign and forgotten, firing on every page without a consent check.
How to fix it
Gate the UET tag behind consent, or use Microsoft's consent mode for UET so it waits for an opt-in before storing or sending ad data.
Questions
Does Microsoft Ads respect Global Privacy Control on its own?
Not reliably. Whether Microsoft Ads stops for an opt-out depends on how it's installed on your site. On 42 of the 313 brands in our data, it kept firing after the visitor opted out.
How do I stop Microsoft Ads after an opt-out?
Gate the UET tag behind consent, or use Microsoft's consent mode for UET so it waits for an opt-in before storing or sending ad data.
How do I check whether Microsoft Ads fires on my site after an opt-out?
Load the page with Global Privacy Control on, or after clicking reject, and watch whether Microsoft Ads still sends requests or sets cookies. Consentinel's free scan does this and names every vendor that ran, with the request as proof.
Other vendors: Meta · Google Ads · TikTok · Klaviyo · Pinterest · Attentive · Snap
Check Microsoft Ads on your site.
Free, about a minute. We test reject, accept and Global Privacy Control, and name every tag that ran when it shouldn't have.
Free. No account. Results in about a minute.