FewCookies

Cookie glossary · Strictly necessary

What is the rack.session cookie?

Session cookie for Ruby applications built on Rack. It is set by Rack and classified as "Strictly necessary". No consent required.

At a glance

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

How FewCookies handles this cookie

FewCookies recognises rack.session 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 rack.session cookie?

No. rack.session 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 rack.session cookie do?

Session cookie for Ruby applications built on Rack.

Who sets the rack.session cookie?

The rack.session cookie is associated with Rack and is classified as strictly necessary.