---
title: "ID5: what refusing costs you"
url: "https://isitsellingme.com/entity/id5/"
grade: "B"
category: "Identity resolution"
last_checked: "2026-09-21"
---

# ID5

**Grade B.** What refusing costs you: A setting, depth unverified.

Identity resolution · UK, EEA

## The clause

> ID5 will set a non-unique opt-out cookie in your browser to store your choice.

Source: https://id5-sync.com/privacy/, checked 21 September 2026. Archived copy: https://github.com/jgarpotter/isitsellingme-archive/blob/main/captures/identity_graph/id5/policy/2026-09-21T124206Z.html

## How this grade was reached

- Base grade B, from what refusing costs you.
- Final grade B.

## The three axes

### What refusing costs you

Finding: A setting, depth unverified.

> ID5 will set a non-unique opt-out cookie in your browser to store your choice.

Source: https://id5-sync.com/privacy/, checked 21 September 2026. Archived copy: https://github.com/jgarpotter/isitsellingme-archive/blob/main/captures/identity_graph/id5/policy/2026-09-21T124206Z.html

### Who receives you

Finding: Not stated.

### Whether the refusal covers everything

Finding: 1 gap the document states, and 5 points it does not address.
- Not stated: Whether it applies to data already collected
- Not stated: Whether it covers in-store purchases
- Not stated: Whether it covers data bought about you
- Not stated: Whether it covers profiles inferred about you
- Gap: Binds one device, not your account
- Not stated: Whether it expires

---

Page: https://isitsellingme.com/entity/id5/
How grades work: https://isitsellingme.com/methodology/
Last checked: 21 September 2026