LinkClean

mkt_tok

Email marketing · Marketo (Adobe) · introduced ~2006

What is mkt_tok?

What mkt_tok encodes

Marketo (acquired by Adobe in 2018) is the dominant marketing-automation platform for B2B email. Every link in a Marketo-sent email carries ?mkt_tok=<long-base64-string>. The token is per-recipient and per-email — Marketo joins it on the destination to identify which lead in their CRM clicked.

If you forward a Marketo email and the recipient clicks the link, Marketo records a click against *your* lead record. Engagement scores get polluted, your sales rep gets a misleading signal, and the recipient's browser hands Marketo a fingerprint join key back to your email address.

Why this matters in B2B

B2B sales teams use Marketo engagement signals to prioritise outreach. A misattributed forward shows up as the *original* recipient (you) clicking, which can trigger sales follow-up calls or move you into a different nurture sequence. From a privacy angle, mkt_tok is the B2B equivalent of mc_eid.

How LinkClean removes it

Default-on in the email-marketing catalog.

Looks like this in a URL
https://example.com/whitepaper?mkt_tok=ODg5LU9PTi0xMjMAAAGRabcdefg1234567890XYZ
After LinkClean
https://example.com/whitepaper

Frequently asked

Is mkt_tok personal data?

Yes — it's per-recipient, base64-encoded, and joins back to a specific lead record in Marketo's CRM (which is keyed to the email address). Functionally identity-linked.

How is mkt_tok different from utm_source?

utm_source names a marketing channel. mkt_tok identifies *the specific person* the email was sent to. Different blast radius entirely.

Will the article still load if I strip mkt_tok?

Yes. Marketo's tracking pixel reads it; the destination page itself never uses it.

Clean tracking on iPhone, in one tap.

LinkClean strips ~80 vendor-specific tracking parameters from any link, from any app's share sheet — and preserves functional ones like hl, t (YouTube timestamp), and q (search). No account, on-device.

Download on the App Store