mathk.dk

📜 Timeline and DNS record history  ·  ← Current records

🕰️ Timeline#

4 events

Current WHOIS: Registrar Realtime Register B.V. · status Active · VID no · expires 2026-11-28 (fetched 2026-10-05).

WhenWhatChange
2026-11-28 upcoming⏳ WHOISPaid until this date (WHOIS expiry) unless it is renewed.
2026-06-17 15:20🔎 ScanFirst scanned: delegated to kami.ns.cloudflare.com, sid.ns.cloudflare.com.
2026-06-16🌱 ZoneAlready in the .dk zone when our tracking began.
2025-11-29📝 WHOISRegistered (the WHOIS registration date).

Zone-list changes since our first list import, DNS changes from our scans, registrar moves and WHOIS status, VID and expiry changes as we fetched them (WHOIS is sampled, so a change is dated when we saw it, not when it happened).

📜 Record History#

12 scans · 21 changes
Scanned AtChanges since previous scan
2026-10-08 07:16:44
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBByQAgACDKlOpfj4mPdDtH3wshYZrvJEBnIyU9n2irwr+5sCqfNwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBbAAgACBqSNPZ/yOc2Xt+OUllw2Ct9IiyYY0MLY5B7NzL/PioQQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
SOA + serial 2416892235 − serial 2416634329
2026-10-05 06:02:31
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBbAAgACBqSNPZ/yOc2Xt+OUllw2Ct9IiyYY0MLY5B7NzL/PioQQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBB/wAgACAj8q7MWDQP7Ivd04Bdiof5uGPJmpXhw51KpzejfcSnVgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
SOA + serial 2416634329 − serial 2415452303
2026-09-30 05:27:04
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBB/wAgACAj8q7MWDQP7Ivd04Bdiof5uGPJmpXhw51KpzejfcSnVgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBkwAgACB2w4vfa+M9HHlOZHTJfrR3J8XZyEh+mfsimKlmhHUyJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
2026-09-25 20:26:06
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBkwAgACB2w4vfa+M9HHlOZHTJfrR3J8XZyEh+mfsimKlmhHUyJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBMwAgACCnWMjBflp06j+m4eqzFG/d2NYVqd4byCHcPG+gt8ZweAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
2026-09-21 07:22:24
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBMwAgACCnWMjBflp06j+m4eqzFG/d2NYVqd4byCHcPG+gt8ZweAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBvAAgACAO3unMAto2NEMjstTmWw8B+4FfoNC7pAFUfu/9Q6wwIwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
SOA + serial 2415452303 − serial 2412286010
2026-08-15 17:56:24
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBvAAgACAO3unMAto2NEMjstTmWw8B+4FfoNC7pAFUfu/9Q6wwIwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBfwAgACD6CEfiSRa8yzMIHKlDUdzi4Wxw9K5b9tKQAEff481cPwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
SOA + serial 2412286010 − serial 2411572111
2026-08-09 03:06:22
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBfwAgACD6CEfiSRa8yzMIHKlDUdzi4Wxw9K5b9tKQAEff481cPwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBswAgACCiMzlK3j4eiTSx9rKf9RNrsWCU9yVkW+uYFjDVFp/gQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
SOA + serial 2411572111 − serial 2411404698
2026-08-05 23:13:43
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBswAgACCiMzlK3j4eiTSx9rKf9RNrsWCU9yVkW+uYFjDVFp/gQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBlQAgACBpTotRHpxkJstF/b5D6hL30QT/6ytTenxmO1GkKeQ+UgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
SOA + serial 2411404698 − serial 2410841218
2026-08-04 11:42:25
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBlQAgACBpTotRHpxkJstF/b5D6hL30QT/6ytTenxmO1GkKeQ+UgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBXgAgACBFkXf2g8cZEHEfcVxipO9f9rntT2WtiIT47PNx7LE5NAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
SOA + serial 2410841218 − serial 2410643862
2026-07-27 19:02:13
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBXgAgACBFkXf2g8cZEHEfcVxipO9f9rntT2WtiIT47PNx7LE5NAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBAAAgACBFYFlZbVDE21fJ1B7X6/xvrObEKnLadqGOtZCL64J0CAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12
SOA + serial 2410643862 − serial 2410351315
2026-07-24 18:15:48
AAAA + 2606:4700:3032::ac43:d7da + 2606:4700:3037::6815:2b12 − 2606:4700:3033::ac43:d7da − 2606:4700:3036::6815:2b12
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBBAAAgACBFYFlZbVDE21fJ1B7X6/xvrObEKnLadqGOtZCL64J0CAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:d7da,2606:4700:3037::6815:2b12 − 1 . alpn="h3,h2" ipv4hint=104.21.43.18,172.67.215.218 ech=AEX+DQBB5wAgACAfhnj2QjvcLesWssUrB3a5fnOhseRkvqgkI6RuTYeBJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:d7da,2606:4700:3036::6815:2b12
SOA + serial 2410351315 − serial 2406701568
2026-06-17 15:20:34 baseline 2 NS · 2 A · 2 MX · 2 AAAA · 1 TXT · 1 HTTPS · serial 2406701568 · DMARC · DNSSEC insecure

Each row compares a scan to the one before it. “baseline” is the oldest scan in the window (last 12 scans). Click a timestamp to view that full snapshot.

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