crsystem.dk
📜 DNS record history  ·  ← Current records
📜 Record History5 scans · 15 changes
Scanned AtChanges since previous scan
2026-08-29 02:01:23
A + 9.205.42.0 + 9.205.42.2 − 104.21.51.141 − 172.67.181.42
AAAA − 2606:4700:3035::6815:338d − 2606:4700:3037::ac43:b52a
HTTPS − 1 . alpn="h3,h2" ipv4hint=104.21.51.141,172.67.181.42 ech=AEX+DQBBHQAgACCVKH0tapWKW1aDmmItLE41khRkYqidlTUBnmJguY6hAgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:338d,2606:4700:3037::ac43:b52a
SOA + serial 2413410748 − serial 2413222703
2026-08-26 23:27:15
MX + 0 crsystem-dk.mail.protection.outlook.com
TXT + MS=ms51825961 + v=spf1 include:spf.protection.outlook.com -all
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.51.141,172.67.181.42 ech=AEX+DQBBHQAgACCVKH0tapWKW1aDmmItLE41khRkYqidlTUBnmJguY6hAgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:338d,2606:4700:3037::ac43:b52a − 1 . alpn="h3,h2" ipv4hint=104.21.51.141,172.67.181.42 ech=AEX+DQBBawAgACAUjjcEHSf2wlThCqPLx//d+m3qlWUe3nwuQaUVaVwQBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:338d,2606:4700:3037::ac43:b52a
SOA + serial 2413222703 − serial 2412849800
2026-08-22 09:51:50
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.51.141,172.67.181.42 ech=AEX+DQBBawAgACAUjjcEHSf2wlThCqPLx//d+m3qlWUe3nwuQaUVaVwQBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:338d,2606:4700:3037::ac43:b52a − 1 . alpn="h3,h2" ipv4hint=104.21.51.141,172.67.181.42 ech=AEX+DQBBXwAgACBjTmLUSwKDFLLUTTzCMyhH8MAC+DBiiXgRgNYhreqPDQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:338d,2606:4700:3037::ac43:b52a
SOA + serial 2412849800 − serial 2412746877
2026-08-21 09:40:20
NS + alex.ns.cloudflare.com + ingrid.ns.cloudflare.com − ns.dandomain.dk − ns2.dandomain.dk
A + 104.21.51.141 + 172.67.181.42 − 212.237.249.17
AAAA + 2606:4700:3035::6815:338d + 2606:4700:3037::ac43:b52a
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.51.141,172.67.181.42 ech=AEX+DQBBXwAgACBjTmLUSwKDFLLUTTzCMyhH8MAC+DBiiXgRgNYhreqPDQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:338d,2606:4700:3037::ac43:b52a
SOA + serial 2412746877 − serial 2026081905
2026-08-20 08:50:36 baseline 2 NS · 1 A · serial 2026081905 · DNSSEC insecure

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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