The ICO exists to empower you through information.

The Privacy and Electronic Communications Regulations (PECR) cover the use of cookies and similar technologies for storing information, and accessing information stored, on a user's equipment such as a computer or mobile device.

This guidance addresses cookies and similar technologies in detail. Read it if you operate an online service, such as a website or a mobile app, and need a deeper understanding of how PECR applies to your use of cookies.

If you haven’t yet read the Cookies page in the Guide to PECR, you should read that first. It sets out the key points you need to know.


What are cookies and similar technologies?

What are the rules on cookies and similar technologies?

How do the cookie rules relate to the GDPR?

How do we comply with the cookie rules?

What else do we need to consider?