Which companies does tesco.com tell about you?

When Packet Voyage last checked tesco.com on 18 October 2026, the page contacted 3 third-party companies before any cookie consent: Google, New Relic and OneTrust. After clicking "Accept all" on the cookie banner, 0 more joined. That ranks it 25th of 29 UK sites in the index for companies contacted before consent.

Before you agree to anything (3)

• Google advertising, based in US
• New Relic analytics and tracking, based in US
• OneTrust cookie banners, based in US

After you accept (“Accept all”) (0)

None.

After you reject (“Reject all”) (0)

After pressing "Reject all", no new companies were contacted (apart from consent platforms or infrastructure).

Check it yourself

Open tesco.com in our browser now to see every request on a map, or get a full report with its speed from around the world.

Measured by opening the home page in Chrome in London as a first-time visitor. One visit from one place is a snapshot, and some early contacts (such as the cookie banner itself) are normal. How the index works.