firstclassnetworking.dk
📜 DNS record history  ·  ← Current records
📜 Record History5 scans · 16 changes
Scanned AtChanges since previous scan
2026-07-24 10:05:01
NS + ns1.simply.com + ns2.simply.com + ns3.simply.com + ns4.simply.com − nonexistent.punktum.dk
A + 185.20.205.50
MX + 0 firstclassnetworking-dk.mail.protection.outlook.com + 10 mx.simply.com
TXT + MS=ms45739085 + v=spf1 include:spf.protection.outlook.com -all
TLSA + _25._tcp.mx.simply.com 311 A9D603AF4D7ED6B9246B4B68500CD6F232B7E8472ED0006626952106C370DD7F + _25._tcp.mx.simply.com 311 97A3BA009F39C761BFFB6574340E813854914EF3B179330823A6980AFAFB533B
SOA + serial 2026021000
DMARC + v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;
DNSSEC + secure − indeterminate
2026-07-23 07:56:50 no changes
2026-07-22 03:55:43 no changes
2026-07-21 03:51:00
NS + nonexistent.punktum.dk − ns1.simply.com − ns2.simply.com − ns3.simply.com − ns4.simply.com
A − 185.20.205.50
MX − 0 firstclassnetworking-dk.mail.protection.outlook.com − 10 mx.simply.com
TXT − MS=ms45739085 − v=spf1 include:spf.protection.outlook.com -all
TLSA − _25._tcp.mx.simply.com 311 A9D603AF4D7ED6B9246B4B68500CD6F232B7E8472ED0006626952106C370DD7F − _25._tcp.mx.simply.com 311 97A3BA009F39C761BFFB6574340E813854914EF3B179330823A6980AFAFB533B
SOA − serial 2026021000
DMARC − v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;
DNSSEC + indeterminate − secure
2026-06-17 09:31:13 baseline 4 NS · 1 A · 2 MX · 2 TXT · 2 TLSA · serial 2026021000 · DMARC · DNSSEC secure

Each row compares a scan to the one before it. “baseline” is the oldest scan in the window (last 5 scans). Click a timestamp to view that full snapshot.

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