FewCookies

Cookie glossary · Strictly necessary

What is the ASP.NET_SessionId cookie?

Session identifier for ASP.NET applications. It is set by Microsoft and classified as "Strictly necessary". No consent required.

At a glance

Provider Microsoft
Category Strictly necessary
Consent required? No
Typical domain Varies (first-party)

How FewCookies handles this cookie

FewCookies recognises ASP.NET_SessionId from our database of 1,300+ known cookies and classifies it automatically as "Strictly necessary". 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 ASP.NET_SessionId cookie?

No. ASP.NET_SessionId is a strictly necessary cookie, exempt from consent under Article 5(3) of the ePrivacy Directive and Law 506/2004. You may use it without the visitor's prior agreement.

What does the ASP.NET_SessionId cookie do?

Session identifier for ASP.NET applications.

Who sets the ASP.NET_SessionId cookie?

The ASP.NET_SessionId cookie is associated with Microsoft and is classified as strictly necessary.