www.rackaid.com/blog/email-dns-records/

Bad DNS settings can undermine your email marketing campaigns. Fix up your DNS records and improve email open rates with these DNS tips.

www.bestvpn.com/blog/5184/4-ways-to-prevent-a-dns-leak-when-...

In addition to VPN connection failures (see our full article on protecting yourself against these here), the other big threat to your anonymity when using a trusted VPN service is that of DNS leaks, which can result in your ISP being able to 'see' and ...

en.wikipedia.org/wiki/List_of_DNS_record_types

This List of DNS record types is an overview of resource records (RRs) permissible in zone files of the Domain Name System (DNS). It also contains pseudo-RRs.

social.dnsmadeeasy.com/blog/authoritative-vs-recursive-dns-s...

These essays are part of a series about the mechanics behind the Internet. They will be used as building blocks with the aim of helping a broader audience, i.e., non-IT experts, understand how all this “stuff” works when it comes to lines o ...

manage.resellerclub.com/kb/servlet/KBServlet/faq1375.html

Overview of TLDs (Domain Name Extensions)