1. This Firefox add-on gets web site FQDN, domain name and IP when user browser to web site, 2. This Firefox add-on gets web site IP, PTR and CNAME form DoH server. 3. This Firefox add-on compares these data and changes icon color by result: Green color = Nromal Yellow color = Private IP Red Color = Both IP form browser and DoH is different AND domain name is not appears in the PTR/CNAME
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This add-on is sensitive to DNS GeoIP, so there will be false positives. I am trying to solve the problem.
I am trying to solve the problem.