Is Diffy safe?

Clean risk

Diffy checks every page you visit against a merchant list and, on a match, sends the URL to shopdiffy.com to fetch comparison alerts.

Diffy's background script watches every tab navigation, not just visits to shopdiffy.com, and once a day fetches a list of tracked merchant hostnames from its own backend. When the current site's hostname matches that list, it sends the full visited URL to shopdiffy.com's API, which replies with data used to render a price-comparison banner on the page.

DupeDropv0.1.0.1Chrome Web Store
0Risk
Who publishes it

DupeDrop - no other listings under this identity

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

Publisher
DupeDrop

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

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 0.1.0.1. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on shopdiffy.com

    https://shopdiffy.com/*

  • Store data in your browser

    storage

  • See the address and title of every tab you have open

    tabs

Where it sends data

Destinations our analysis observed Diffy 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.

  • shopdiffy.com

    Diffy sends data to shopdiffy.com. No other extension we have analysed sends data here.

Updated 30 September 2026kbfjonhojlcdljhgnnblleppfcellcap