FewCookies

Cookie glossary · Strictly necessary

What is the esctx cookie?

Stores the Microsoft Entra authentication session context for CSRF protection, binding the request to the browser instance. It is set by Microsoft Identity Platform and classified as "Strictly necessary". No consent required.

At a glance

Provider Microsoft Identity Platform
Category Strictly necessary
Consent required? No
Typical domain .login.microsoftonline.com

How FewCookies handles this cookie

FewCookies recognises esctx 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 esctx cookie?

No. esctx 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 esctx cookie do?

Stores the Microsoft Entra authentication session context for CSRF protection, binding the request to the browser instance.

Who sets the esctx cookie?

The esctx cookie is associated with Microsoft Identity Platform and is classified as strictly necessary.