FewCookies

Cookie glossary · Analytics

What is the _dd_s cookie?

Datadog Real User Monitoring cookie that holds the RUM session state to group a visit's events and track user experience. It is set by Datadog and classified as "Analytics". Requires consent.

At a glance

Provider Datadog
Category Analytics
Consent required? Yes
Typical domain Varies (first-party)

How FewCookies handles this cookie

FewCookies recognises _dd_s from our database of 1,300+ known cookies and classifies it automatically as "Analytics". The free check tells you whether this cookie is detected on your site and whether your banner handles it correctly — an instant, surface-level check, no account needed.

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Frequently asked questions

Do you need consent for the _dd_s cookie?

Yes. _dd_s is a "Analytics" cookie, so it is not strictly necessary. Under the ePrivacy Directive (2002/58/EC) and Romania's Law 506/2004, you must obtain the visitor's explicit consent before setting it.

What does the _dd_s cookie do?

Datadog Real User Monitoring cookie that holds the RUM session state to group a visit's events and track user experience.

Who sets the _dd_s cookie?

The _dd_s cookie is associated with Datadog and is classified as analytics.