u21.dk
📜 DNS record history  ·  ← Current records
📜 Record History11 scans · 22 changes
Scanned AtChanges since previous scan
2026-08-31 12:06:09
A + 188.228.54.137
SOA + serial 2026083101 − serial 2026082907
2026-08-30 06:59:47
A − 62.66.164.154
AAAA + 2a00:fd01:8146:3d00:215:5dff:fe02:6d04
SOA + serial 2026082907 − serial 2026082802
2026-08-29 00:01:53
SOA + serial 2026082802 − serial 2026080200
2026-08-27 23:52:20 no changes
2026-08-27 02:11:21 no changes
2026-08-08 07:11:21
TXT + v=spf1 include:spf.mailjet.com include:spf.simply.com -all − v=spf1 include:spf.simply.com -all
SOA + serial 2026080200 − serial 2026061200
2026-07-03 09:00:41 no changes
2026-06-27 21:11:59 no changes
2026-06-26 01:23:11
NS + ns1.simply.com + ns2.simply.com + ns3.simply.com
A + 62.66.164.154
MX + 0 mail.7a.dk
TXT + v=spf1 include:spf.simply.com -all
SOA + serial 2026061200
DMARC + v=DMARC1; p=none;
DNSSEC + secure − indeterminate
2026-06-22 10:15:52
NS − ns1.simply.com − ns2.simply.com − ns3.simply.com
A − 62.66.164.154
MX − 0 mail.7a.dk
TXT − v=spf1 include:spf.simply.com -all
SOA − serial 2026061200
DMARC − v=DMARC1; p=none;
DNSSEC + indeterminate − secure
2026-06-18 04:07:30 baseline 3 NS · 1 A · 1 MX · 1 TXT · serial 2026061200 · DMARC · DNSSEC secure

Each row compares a scan to the one before it. “baseline” is the oldest scan in the window (last 11 scans). Click a timestamp to view that full snapshot.

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