FewCookies

Cookie glossary · Strictly necessary

What is the ci_session cookie?

CodeIgniter session cookie that identifies and maintains the user's session. It is set by CodeIgniter and classified as "Strictly necessary". No consent required.

At a glance

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

How FewCookies handles this cookie

FewCookies recognises ci_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.

Check your site for free →

Frequently asked questions

Do you need consent for the ci_session cookie?

No. ci_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 ci_session cookie do?

CodeIgniter session cookie that identifies and maintains the user's session.

Who sets the ci_session cookie?

The ci_session cookie is associated with CodeIgniter and is classified as strictly necessary.