OpenCookies

Cookie dictionary

_li_fat_id — LinkedIn Insight Tag

By the OpenCookies team · published 2026-10-22 · updated 2026-10-22

Service
LinkedIn Insight Tag
Category
Advertising and profiling
Default duration
30 days
Type
First-party cookie (set by your own site)
Consent required?
Yes, before any storage or reading.

What is it for?

Stores the click ID of a LinkedIn ad to attribute a conversion to the right campaign.

What does it look like?

The value is a hexadecimal string specific to the click.

How to see it in your browser

Open your site, press F12, then choose the “Application” tab (Chrome, Edge) or “Storage” (Firefox). Under “Cookies”, select your site’s address: the _li_fat_id cookie appears in the list if present, with its value and expiry date.

What does the rule say?

Targeted advertising, remarketing and profiling require prior, free and informed consent. These cookies cannot be exempted.

How to prevent it before the choice

Do not load the Insight Tag before consent.

How OpenCookies handles it

Common services like this one are in OpenCookies’ tracker list: the banner neutralizes their script before the visitor chooses and only restarts it after “Accept”. The test shows whether this cookie appears before the choice, after “Refuse” and after “Accept”.

Check it on my site

Does this cookie appear on your site before the visitor chooses? The OpenCookies test shows it in two minutes.

Test my site

Related cookies

Frequently asked questions

When does it appear?

When the visitor arrives from a LinkedIn ad and the Insight Tag is active.

Is it present without a LinkedIn ad?

No, it is only created from a click on an ad.

Durations are defaults and may change with configuration. This page describes a cookie; it is not legal advice.

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