mathk.dk
📜 DNS record history  ·  ← Current records
📜 Record History7 scans · 13 changes
Scanned AtChanges since previous scan
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 7 scans). Click a timestamp to view that full snapshot.

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