Analytics

"matomo_sessid" Cookie

Matomo

Description

when you use the opt-out feature (this is called a nonce and helps prevent CSRF security issues)

Details

Cookie Name: matomo_sessid
Category: Analytics
Service: Matomo
Duration: 14 days
Data Source: Open cookie db

Consent Requirement

This cookie is classified as analytics. Under GDPR, CCPA, and most privacy regulations, user consent is required before setting this cookie.

Consent Requirements by Regulation

GDPR & ePrivacy (EU)

Prior consent is required before setting matomo_sessid. Analytics cookies are not covered by the strictly necessary exemption; only a few regulators (for example France's CNIL) allow a narrow exemption for first-party audience measurement under strict conditions.

UK GDPR & PECR

Consent is required before setting matomo_sessid. The ICO treats analytics cookies as non-essential.

CCPA/CPRA (California)

Disclose matomo_sessid in your privacy policy and honour opt-out requests, including the Global Privacy Control signal, if the analytics data is shared or sold.

Managing matomo_sessid with a Consent Banner

A consent management platform keeps matomo_sessid blocked until the visitor opts in to the analytics category. Kukie.io's scanner detects it automatically, categorises it, and the banner's auto-blocking holds back the script that sets it until consent is given - visitors who decline never receive it.

Frequently Asked Questions

Does the matomo_sessid cookie require consent?

Yes. matomo_sessid is an analytics cookie: under GDPR and the ePrivacy rules it may only be set after the visitor opts in, and CCPA requires disclosure plus an opt-out.

How long does the matomo_sessid cookie last?

matomo_sessid typically persists for 14 days. The exact lifetime can vary with the site's configuration and the version of the script that sets it.

Who sets the matomo_sessid cookie?

matomo_sessid is set by Matomo. It is categorised as analytics.

How do I block or delete the matomo_sessid cookie?

Visitors can delete matomo_sessid at any time through their browser's cookie settings. Site owners can keep it blocked until consent with a consent management platform: Kukie.io's auto-blocking holds analytics cookies back until the visitor opts in.