topic Registered
Verified 2026-09-19 · registry updated 2025-12-02

HTTP registry: Secure

Registered value from the IANA HTTP registry.

Cookie values control browser state, scope, lifetime, transport, and cross-site behavior. Secure is registered in Cookie Attributes. Defining reference: RFC-ietf-httpbis-rfc6265bis-22, Section 4.1.2.5.

httpregistrycookie-attribute-namescookie-attributes

Identifier (http)

Secure

Registered value from the IANA HTTP registry.

Use Secure, HttpOnly, deliberate SameSite and host scope, bounded lifetimes, and server-side invalidation.

This registry value is currently marked active by IANA. Follow the defining specification before sending, accepting, or proxying it.

IANA registry: cookie-attribute-names/cookie-attributes

Registry reference: RFC-ietf-httpbis-rfc6265bis-22, Section 4.1.2.5

Sources

Permalink: https://merginit.com/reference/http/registry/cookie-attribute-names/cookie-attributes/secure-6