PECR cookie rules are part of the UK Privacy and Electronic Communications Regulations. These rules require websites to get user consent before storing non-essential cookies on devices. Essential cookies that support basic website functions can usually run without consent. Analytics, advertising, and personalization cookies normally require clear user permission first.

Businesses must also explain what cookies they use and why. PECR works alongside UK GDPR, which also requires transparency and lawful data processing. Many businesses use consent management platforms to manage cookie banners and user preferences. Seers AI helps businesses create compliant cookie banners and manage consent records for PECR compliance.