A small text file a website stores in a visitor's browser. Some cookies are needed for the website to work (Essential), some remember choices such as a language (Functional), some measure how the website is used (Analytics) and some are used to show ads (Marketing).

How do I find out which cookies my website uses?

Scan it with the free cookie scanner. It loads up to 10 pages of your website, lists every cookie they set, including third-party cookies, and sorts each one into a category.

Do all cookies need consent?

No. Under Article 5(3) of the ePrivacy Directive, cookies that are strictly necessary for a service the visitor asked for, such as a session cookie or a security token, are exempt. Other cookies, including most functional, analytics and marketing cookies, need the visitor's consent before they are set.

What is the difference between first-party and third-party cookies?

A first-party cookie is set by the website the visitor is on. A third-party cookie is set by another domain, usually through an embedded script such as an analytics tool, an advertising network or a social media widget. Safari and Firefox block many third-party cookies by default.

How long do cookies last?

It varies. Session cookies are deleted when the browser closes, while persistent cookies last from minutes to years. Google Analytics' _ga cookie, for example, lasts 2 years and _gid lasts 24 hours. Each cookie page shows the usual duration.

Where does the cookie database come from?

It combines the Open Cookie Database, a second imported cookie dataset, entries written by the Kukie.io team, and cookies found on Kukie.io customers' websites that the team has reviewed. The Open Cookie Database is synced every week. It holds more than 3,300 cookies.

Cookie database

Look up any cookie by name.

Search 3,300+ known cookies to see what each one does, who sets it, which category it belongs to and how long it lasts.

Free, no account needed

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Common cookies

Well-known cookies.

Select a name to see what the cookie does, who sets it and when it needs consent.

Common cookies, their category and provider
Cookie name	Category	Provider
cookiehub	Essential	CookieHub
_ga_	Analytics	Google Analytics
_gat_	Analytics	Google Analytics
__Secure-ROLLOUT_TOKEN	Marketing	Youtube
wpEmojiSettingsSupports	Essential	Not known
lastExternalReferrerTime	Marketing	Meta Pixel
lastExternalReferrer	Marketing	Meta Pixel
_GRECAPTCHA	Functional	Google reCAPTCHA
_gcl_ls	Marketing	Google Ads
rudder_	Uncategorised	Not known
li_gc	Functional	LinkedIn
topicsLastReferenceTime	Marketing	Meta Pixel
_hjSessionUser_	Functional	Hotjar
_hjSession_	Functional	Hotjar
UserSettings	Essential	eviivo
sbjs_current	Analytics	WooCommerce
sbjs_udata	Analytics	WooCommerce
sbjs_session	Analytics	WooCommerce
sbjs_current_add	Analytics	WooCommerce
sbjs_migrations	Analytics	WooCommerce

Four kinds of cookie.

Each cookie in the database belongs to one of the categories a consent banner shows visitors.

Essential

Needed for the website to work, such as a session cookie or a security token. They are always active, and visitors cannot switch them off.

Functional

Remember choices such as a language or a region, so the website does not ask again.

Analytics

Measure how visitors use the website, such as which pages they open and how they arrived.

Marketing

Follow visitors across websites to show them ads. They need the visitor's consent before they are set.

Find the cookies on your own website.

The cookie scanner lists every cookie a website sets and looks each one up here.

Scan your website See pricing

Kukie.io provides tools to collect and record consent. It is not legal advice, and using it does not by itself make a website compliant with any law.