matematikonline.dk
📜 DNS record history  ·  ← Current records
📜 Record History10 scans · 29 changes
Scanned AtChanges since previous scan
2026-07-31 11:39:36
A + 188.114.96.1 + 188.114.97.1 − 104.21.81.53 − 172.67.138.218
AAAA + 2a06:98c1:3120::1 + 2a06:98c1:3121::1 − 2606:4700:3031::6815:5135 − 2606:4700:3031::ac43:8ada
HTTPS + 1 . alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBZgAgACBLsnVUjQQoNDOobDntKf8F2I1E7NUm9+x5Q+kPAzeeNQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1 − 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBB5AAgACDKZ8lsRPhhmeEuJL6OVArA/wTaaCpl3raF9PM13L+7IAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada
SOA + serial 2410852749 − serial 2410683924
2026-07-29 18:12:00
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBB5AAgACDKZ8lsRPhhmeEuJL6OVArA/wTaaCpl3raF9PM13L+7IAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada − 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBBnQAgACCYvFtJNEIrrHyHrzwP6PNJ7VciofLWG/X2xFDUMZFzYwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada
SOA + serial 2410683924 − serial 2405751412
2026-07-02 23:20:19
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBBnQAgACCYvFtJNEIrrHyHrzwP6PNJ7VciofLWG/X2xFDUMZFzYwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada − 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBBSAAgACCOApx+y3HkBBLU7e54bmekbLMY/8udBNfIuQpUNaPYQgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada
2026-06-27 21:19:15
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBBSAAgACCOApx+y3HkBBLU7e54bmekbLMY/8udBNfIuQpUNaPYQgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada − 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBBpwAgACDo/XZK9WMmGUCu8Y1c0FhuQkvvhv7Eh3p+EjEWTF1DbgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada
2026-06-24 19:12:02
A + 104.21.81.53 + 172.67.138.218 − 188.114.96.0 − 188.114.97.0
AAAA + 2606:4700:3031::6815:5135 + 2606:4700:3031::ac43:8ada − 2a06:98c1:3120:: − 2a06:98c1:3121::
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBBpwAgACDo/XZK9WMmGUCu8Y1c0FhuQkvvhv7Eh3p+EjEWTF1DbgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada − 1 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ech=AEX+DQBBxgAgACBoGvPVLou81FHWK0GmfguRdjvOq1UAePjS44bob8MWTwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
2026-06-22 01:54:56
NS + terry.ns.cloudflare.com + uma.ns.cloudflare.com
A + 188.114.96.0 + 188.114.97.0
AAAA + 2a06:98c1:3120:: + 2a06:98c1:3121::
HTTPS + 1 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ech=AEX+DQBBxgAgACBoGvPVLou81FHWK0GmfguRdjvOq1UAePjS44bob8MWTwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
SOA + serial 2405751412
DNSSEC + insecure − indeterminate
2026-06-22 00:18:17
NS − terry.ns.cloudflare.com − uma.ns.cloudflare.com
A − 104.21.81.53 − 172.67.138.218
AAAA − 2a06:98c1:3120::1 − 2a06:98c1:3121::1
HTTPS − 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBBxwAgACAmdfruNoRuWTzoiSZ8+3asFsQZjE+XdY90zWVN7y7MKgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada
SOA − serial 2405751412
DNSSEC + indeterminate − insecure
2026-06-20 11:44:49
A + 104.21.81.53 + 172.67.138.218 − 188.114.96.0 − 188.114.97.0
AAAA + 2a06:98c1:3120::1 + 2a06:98c1:3121::1 − 2a06:98c1:3120:: − 2a06:98c1:3121::
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.81.53,172.67.138.218 ech=AEX+DQBBxwAgACAmdfruNoRuWTzoiSZ8+3asFsQZjE+XdY90zWVN7y7MKgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5135,2606:4700:3031::ac43:8ada − 1 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ech=AEX+DQBBmQAgACAW2Zml2I0DYSJ6ZUQjSHgtTQ4aJ7FXZdhBDW7ShydAEAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::,2a06:98c1:3121::
2026-06-20 01:04:16
A + 188.114.96.0 + 188.114.97.0 − 188.114.96.1 − 188.114.97.1
AAAA + 2a06:98c1:3120:: + 2a06:98c1:3121:: − 2a06:98c1:3120::1 − 2a06:98c1:3121::1
HTTPS + 1 . alpn="h3,h2" ipv4hint=188.114.96.0,188.114.97.0 ech=AEX+DQBBmQAgACAW2Zml2I0DYSJ6ZUQjSHgtTQ4aJ7FXZdhBDW7ShydAEAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::,2a06:98c1:3121:: − 1 . alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBXgAgACBYdqEg9t+ceUEOewqh+wmq9pQHyffrmdwg5FCZq2THbwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1
2026-06-18 07:36:21 baseline 2 NS · 2 A · 2 AAAA · 1 HTTPS · serial 2405751412 · DNSSEC insecure

Each row compares a scan to the one before it. “baseline” is the oldest scan in the window (last 10 scans). Click a timestamp to view that full snapshot.

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