_u cookie
Set by Bing / Microsoft.
What it does
Tracks interaction on a website after having clicked on a Bing ad
- Cookie name
- _u
- Category
- Marketing
- Provider
- Bing / Microsoft
- Duration
- 13 months
- Data source
- Open Cookie Database (opens in a new tab)
Consent
_u is in the Marketing category. In the EU and the UK, it needs the visitor's consent before it is set. Under California's CCPA, visitors can opt out of the sale or sharing of their personal information, including for cross-context behavioural advertising.
- GDPR and ePrivacy (EU)
- Prior consent is needed before setting _u. Advertising and tracking cookies are never covered by the strictly necessary exemption.
- UK GDPR and PECR
- Consent is needed before setting _u.
- CCPA and CPRA (California)
- Setting _u for cross-context behavioural advertising counts as sharing personal information: offer a "Do Not Sell or Share My Personal Information" opt-out and honour the Global Privacy Control signal.
Managing _u with a consent banner
A consent banner can keep the script that sets _u waiting until the visitor accepts marketing cookies. Kukie.io's cookie scanner finds _u and sorts it into a category. The banner holds back known trackers by default, and any other script you tag with its category waits too.
Find every cookie your website sets, sorted into categories.
Questions about _u
Does the _u cookie need consent?
How long does the _u cookie last?
Who sets the _u cookie?
How do I block or delete the _u cookie?
Ask before cookies like this are set.
Kukie.io finds the cookies on your website, sorts them into categories and holds back known trackers until visitors agree.
Disclaimer
Kukie.io provides tools to collect and record consent. It is not legal advice, and using it does not by itself make a website compliant with any law.
