# epik — Pinterest's click identifier, explained

- Canonical: https://linkclean.app/trackers/epik/
- Updated: 2026-07-20
- Author: Ken Tominaga (https://ken0nek.com)
- Get the app: https://apps.apple.com/us/app/linkclean/id6758604043

Parameter: `epik` · Category: Ad-click identifiers · Vendor: Pinterest Ads

> epik is **Pinterest's per-click identifier** — added to outbound clicks from both organic pins and paid Pinterest Ads. The Pinterest equivalent of fbclid. Strip it before forwarding.

## What epik does

Pinterest's tracking pixel (Pinterest Tag) reads epik on destination pages to attribute the click back to the pin and (where applicable) the ad-account. The token encodes the click context and is bound to the Pinterest session that produced it.

Unlike fbclid (which is mainly on Meta-served ad clicks), epik shows up on a wider range of Pinterest outbound URLs — organic-pin clicks carry it too, since Pinterest's growth model leans heavily on tracking which pins drive off-platform engagement.

## Privacy posture

epik is tied to your Pinterest session on Pinterest's side. Forwarding it sends Pinterest a click signal joined to your account context, the same way forwarding fbclid does to Meta.

## How LinkClean removes it

Default-on, every host. In LinkClean's reference catalog (Pinterest family).

## Example

Looks like this in a URL: `https://example.com/article?epik=dj0yJnU9aDhpeXh1V0RPRjlXVDVNYTBzMDdwUkc`

After LinkClean: `https://example.com/article`

## Frequently asked

**Does epik appear on free (non-ad) Pinterest clicks?**

Yes. Pinterest tracks outbound traffic from organic pins as well as paid ads — epik is on both.

**What's the Pinterest equivalent of Meta Pixel?**

Pinterest Tag — the script that reads epik on destination pages and reports conversions back to Pinterest Ads.

**Is epik personal data?**

It's tied to your Pinterest session on Pinterest's side. The URL doesn't say “you”, but Pinterest can join it to your account.


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