_mkto_trk cookie: what it does, who sets it, consent category

_mkto_trk cookie

Marketing cookie set by OneTrust, lasting 729 days.

Is _mkto_trk firing on your site before anyone says yes?

Conzent holds _mkto_trk and every other marketing cookie until the visitor accepts, and Consent Mode v2 keeps your Google Ads and GA4 reporting accurate. Registered IAB TCF CMP, Google-certified. From €7 per site a month.

Try it free for 14 days or self-host it for free

What the _mkto_trk cookie does

This cookie is associated with an email marketing service provided by Marketo. This tracking cookie allows a website to link visitor behaviour to the recipient of an email marketing campaign, to measure campaign effectiveness.

Who sets it

OneTrust — privacy policy

Consent category: marketing

Marketing cookies follow visitors across sites to build advertising profiles and to measure campaigns. They always require prior consent, and a consent banner has to block them until the visitor agrees.

Name	`_mkto_trk`
Category	Marketing
Lifetime	729 days
Set by	OneTrust

Other cookies from the same vendor

Is this cookie on your site?

Conzent's scanner lists every cookie your site sets, classifies each one the way this page does, and shows which are set before the visitor has consented. Try Conzent free for 14 days, or look up another cookie.

From the Conzent cookie database, last updated 2026-11-12. Descriptions come from vendor documentation, cookie policies and our own scans; write to support@getconzent.com to correct one.