NS records for this zone are defined at protonmail.ch.
About these results
This page shows the DNS records for mailsec.protonmail.ch. By default it shows records of types A, AAAA, CNAME, TXT, NS, MX and SOA.
Find other DNS records for mailsec.protonmail.ch:
The results on this page are freshly fetched just for you when you loaded this page. Wirewiki queried the autoritative DNS servers of mailsec.protonmail.ch. That means that these results are guaranteed to be accurate, because there are no caches in between that could potentially cause staleness.
To find the DNS records of a subdomain of mailsec.protonmail.ch, or any nother domain name, go back to DNS lookup and enter the domain name.