OpenCookies

Cookie dictionary

NID — Google

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

Service
Google
Category
Advertising and profiling
Default duration
About 6 months
Type
Third-party cookie (set by another domain)
Consent required?
Yes, before any storage or reading.

What is it for?

Google cookie that remembers preferences and is used to personalize ads. It appears notably when a Google service (map, reCAPTCHA, search) is loaded.

What does it look like?

The value is a long opaque string. The cookie is written on a Google domain (google.com or google.fr).

How to see it in your browser

Open your site, press F12, then choose the “Application” tab (Chrome, Edge) or “Storage” (Firefox). This cookie is written by another domain: look for it under “Cookies”, under the service’s domain. If you cannot see it, your browser may be blocking third-party cookies.

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

Load non-essential Google embeds (maps, external fonts, widgets) only after 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”.

Step-by-step guide : Google Consent Mode v2: how to set it up simply

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

Which page elements trigger it?

A Google Maps embed, a reCAPTCHA, an embedded Google search or other Google services loaded from your page.

Is it always an advertising cookie?

It serves several purposes including ad personalization; it is therefore classed with cookies requiring consent.

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

← All cookies