holtzmann.dk
📜 DNS record history  ·  ← Current records
📜 Record History6 scans · 9 changes
Scanned AtChanges since previous scan
2026-08-27 16:24:44
SOA + serial 2026082701 − serial 2026082004
2026-08-20 20:35:07
SOA + serial 2026082004 − serial 2026081301
2026-08-13 08:14:43
SOA + serial 2026081301 − serial 2026081001
2026-08-12 06:00:39
TXT + protonmail-verification=ade7b42b26f6b20df8230330de76d698be497b12
SOA + serial 2026081001 − serial 2026080604
2026-08-09 18:26:41
MX + 10 mail.protonmail.ch + 20 mailsec.protonmail.ch − 0 .
TXT + v=spf1 include:_spf.protonmail.ch mx ~all − v=spf1 -all
TLSA + _25._tcp.mail.protonmail.ch 311 6111A5698D23C89E09C36FF833C1487EDC1B0C841F87C49DAE8F7A09E11E979E + _25._tcp.mail.protonmail.ch 311 76BB66711DA416433CA890A5B2E5A0533C6006478F7D10A4469A947ACC8399E1 + _25._tcp.mailsec.protonmail.ch 311 76BB66711DA416433CA890A5B2E5A0533C6006478F7D10A4469A947ACC8399E1 + _25._tcp.mailsec.protonmail.ch 311 6111A5698D23C89E09C36FF833C1487EDC1B0C841F87C49DAE8F7A09E11E979E
SOA + serial 2026080604 − serial 2026080601
2026-08-06 08:47:07 baseline 3 NS · 1 A · 1 MX · 1 TXT · serial 2026080601 · DMARC · DNSSEC insecure

Each row compares a scan to the one before it. “baseline” is the oldest scan in the window (last 6 scans). Click a timestamp to view that full snapshot.

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