1
Who reads your email?
A look at diversity of MX records across all gTLDs and the Top 1M domains, indicating where SMTP is concentrated and what organizations might have broad access to the world's emails.
Jan Schaumann
This is just another boring personal website. I don't have a Facebook, for obvious reasons. You can find me on Mastodon or LinkedIn (local résumé ). I also have a blog (because who doesn't), as well as, to the great amusement of my children, a distinct German accent.
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Visit netmeister.org → On Hacker News Oct 2019 – Sep 2026
Networking & Internet 7Software Engineering 5Security & Privacy 4Systems & Performance 3Career & Management 3Web & Frontend 2
2
DNS Security: Threat Modeling DNSSEC, DoT, and DoH
There's been a lot of talk about DNS-over-HTTPS aka DoH lately, primarily due to Mozilla's and Google's respective plans to move forward with enabling it in their browsers. There's also a lot of misunderstanding and conflation of speculated plans for world domination with practical benefits of the technology; it…
3
Whois: Fragile, Unparseable, Obsolete
A rather unstructured look at one of the older and infuriatingly trivial internet protocols: WHOIS
4
Infosec Core Competencies
An incomplete list of (technical) things just about anybody working in Information Security would benefit from knowing.