Is PropertyData - Data, Info & Analysis safe?

Medium risk

PropertyData adds its auth cookie value to iframe URLs it injects into property listing pages.

PropertyData reads the `last_auth_id` cookie from propertydata.co.uk and stores it in Chrome sync storage. On Rightmove, Zoopla, and OnTheMarket listing pages, it builds a propertydata.co.uk iframe URL containing listing details and that cookie value, then injects the iframe into the page DOM.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

PropertyDatav3.23Chrome Web Store
40Risk
Who publishes it

Liberty Tech Limited - no other listings under this identity, 2 shared hostnames

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
PropertyData
Declared legal entity
Liberty Tech Limited
Registered address
The Manor House, Noke, Oxford OX3 9TX, GB
Registered contact
Michael Dent

Shared hosts - 2 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

propertydata.co.uk
Also called by 1 other listing: The Buy-To-Let Platform
ww2.zoopla.co.uk
Also called by 2 other listings, including Property Market Intel: Property Insights

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Where it sends data

Destinations our analysis observed PropertyData - Data, Info & Analysis contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • propertydata.co.uk

    PropertyData - Data, Info & Analysis sends data to propertydata.co.uk. No other extension we have analyzed sends data here.

Updated 2 November 2026nmgflehpkmokienojjgpbddklnedoonp