Does the _hjSessionStorageTest cookie need consent?

Usually yes. _hjSessionStorageTest is a functional cookie, and unless it is strictly necessary for a feature the visitor asked for, it needs consent before it is set.

How long does the _hjSessionStorageTest cookie last?

_hjSessionStorageTest usually lasts until the browser closes. The exact lifetime depends on the site's settings and the version of the script that sets it.

Who sets the _hjSessionStorageTest cookie?

_hjSessionStorageTest is set by Hotjar. It is in the Functional category.

How do I block or delete the _hjSessionStorageTest cookie?

Visitors can delete _hjSessionStorageTest in their browser's cookie settings. On your own website, a consent banner can keep the script that sets it waiting until the visitor accepts functional cookies. Kukie.io's banner does this for known trackers by default, and for any other script you tag with its category.

Functional

_hjSessionStorageTest cookie

Set by Hotjar.

What it does

This cookie checks if the Hotjar Tracking Code can use Session Storage. If it can, a value of 1 is set.

Cookie name: _hjSessionStorageTest
Category: Functional
Provider: Hotjar
Duration: Session
Data source: Open Cookie Database (opens in a new tab)

Consent

Usually needed

_hjSessionStorageTest is in the Functional category. Functional cookies usually need the visitor's consent, unless the cookie is strictly necessary for something the visitor asked for, such as remembering a language they just chose.

GDPR and ePrivacy (EU): Consent is needed before setting _hjSessionStorageTest, unless it is strictly necessary for a feature the visitor asked for, such as remembering a language they just chose.
UK GDPR and PECR: The same as in the EU: consent first, unless the cookie qualifies for the strictly necessary exemption.
CCPA and CPRA (California): Disclose _hjSessionStorageTest in your privacy policy. If the data it stores is shared with third parties, honour opt-out requests, including the Global Privacy Control signal.

Managing _hjSessionStorageTest with a consent banner

A consent banner can keep the script that sets _hjSessionStorageTest waiting until the visitor accepts functional cookies. Kukie.io's cookie scanner finds _hjSessionStorageTest and sorts it into a category. The banner holds back known trackers by default, and any other script you tag with its category waits too.

Learn more about script blocking

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