Is Zillow Redfin Realtor Real Estate Supercharge safe?

Medium risk

Zillow Redfin Realtor Real Estate Supercharge injects Inspectlet tracking code into Redfin, Zillow, and Realtor pages.

When its Homeluten card is added to real-estate pages, the extension loads Inspectlet from cdn.inspectlet.com into the page. That third-party script runs on Redfin map and listing pages and on Zillow/Realtor listing pages, where the reviewed data types include the page URL, page contents, and form input. On Redfin pages, page scripts can also request or overwrite extension sync-storage values through a window message bridge.

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

Costbellv4.1.3Chrome Web Store
40Risk
Who publishes it

Costbell - 1 other listing from the same operator, 1 of them carrying a finding

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

Publisher
Costbell

Same store account

1 other listing published from this account, 6k+ users between them. 1 of them carries a finding.

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 4.1.3. 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 redfin.com

    https://*.redfin.com/*

  • Read and change your data on zillow.com

    https://*.zillow.com/*

  • Read and change your data on realtor.com

    https://*.realtor.com/*

  • Store data in your browser

    storage

  • Act on the current tab, but only after you click the extension

    activeTab

  • Run its own code inside the pages you visit

    scripting

Where it sends data

Destinations our analysis observed Zillow Redfin Realtor Real Estate Supercharge 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.

  • cdn.inspectlet.com

    Zillow Redfin Realtor Real Estate Supercharge sends data to cdn.inspectlet.com. No other extension we have analysed sends data here.

Updated 30 September 2026dmlmenebejdemdbmgldkpckfbmijlchh