mr21.dk
📜 DNS record history  ·  ← Current records
📜 Record History8 scans · 17 changes
Scanned AtChanges since previous scan
2026-08-27 21:33:53 no changes
2026-08-26 17:32:21 no changes
2026-08-17 00:01:49
SOA + serial 2412322819 − serial 2412135556
2026-08-14 20:50:10
SOA + serial 2412135556 − serial 2407221812
DNSSEC + insecure − indeterminate
2026-06-24 20:46:18
NS + alfred.ns.cloudflare.com + isla.ns.cloudflare.com
A + 185.21.40.30
MX + 0 mr21-dk.mail.protection.outlook.com
TXT + MS=ms15694580 + v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:web.shared.mysmtp.com -all
SOA + serial 2407221812
DMARC + v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;
2026-06-23 21:04:20
NS − alfred.ns.cloudflare.com − isla.ns.cloudflare.com
A − 185.21.40.30
MX − 0 mr21-dk.mail.protection.outlook.com
TXT − MS=ms15694580 − v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:web.shared.mysmtp.com -all
SOA − serial 2407221812
DMARC − v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;
DNSSEC + indeterminate − insecure
2026-06-20 20:37:18
SOA + serial 2407221812 − serial 2406323473
2026-06-17 13:01:47 baseline 2 NS · 1 A · 1 MX · 2 TXT · serial 2406323473 · DMARC · DNSSEC insecure

Each row compares a scan to the one before it. “baseline” is the oldest scan in the window (last 8 scans). Click a timestamp to view that full snapshot.

dhd.dk [/] search Domains, Hosts & DNS — .dk zone