Is TechnologyChecker - Website Technology Lookup safe?
TechnologyChecker sends the hostname of each page you visit to Cloudflare's DNS-over-HTTPS service during technology detection.
While detecting the technologies a website uses, the extension's service worker looks up DNS records (TXT, MX, NS, SOA, CNAME) for the hostname of each http/https page you visit. These lookups go to cloudflare-dns.com, with results cached per domain.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itTechnologyChecker.io - no other listings under this identity, 13 shared hostnames
TechnologyChecker.io - no other listings under this identity, 13 shared hostnames
What this publisher told the store about itself, and the other listings that told it the same thing.
Shared hosts - 13 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.
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 TechnologyChecker - Website Technology Lookup 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.
- cloudflare-dns.com
TechnologyChecker - Website Technology Lookup sends data to cloudflare-dns.com. 2 other extensions we have analysed send data here.