This add-on will display whether or not the visited domains' zones are signed with DNSSEC in your URL bar.
Please note, for the most privacy-inclined users, that it uses Cloudflare's 1.1.1.1 (by default) or Google Public DNS web services to perform DNS queries. So your browsing history will, in a way, be transmitted to Cloudflare or Google.
In the future, we will allow using a custom DNS over HTTPS service.
