frederiksenscientific.dk
📜 DNS record history  ·  ← Current records
📜 Record History10 scans · 28 changes
Scanned AtChanges since previous scan
2026-08-31 15:54:00
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBBbQAgACB7/SBH+xqW4r7SI60BZcc14GXZERm9bXXLDs1CZjL2RwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:84c9,2606:4700:3036::6815:d60 − 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBB1wAgACD8CBFFZl+V57z5L9RdL2Q5TKFd9GuhFLvPQYAskgQ6EgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:84c9,2606:4700:3036::6815:d60
2026-08-25 22:49:51
A + 104.21.13.96 + 172.67.132.201 − 188.114.96.1 − 188.114.97.1
AAAA + 2606:4700:3035::ac43:84c9 + 2606:4700:3036::6815:d60 − 2a06:98c1:3120::1 − 2a06:98c1:3121::1
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBB1wAgACD8CBFFZl+V57z5L9RdL2Q5TKFd9GuhFLvPQYAskgQ6EgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:84c9,2606:4700:3036::6815:d60 − 1 . alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBvwAgACC8bFRG/HGtd0OTaBGDGE/0zbgDA8OiWW/uFaEg6uJvEwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1
2026-07-22 21:10:36
A + 188.114.96.1 + 188.114.97.1 − 104.21.13.96 − 172.67.132.201
AAAA + 2a06:98c1:3120::1 + 2a06:98c1:3121::1 − 2606:4700:3035::ac43:84c9 − 2606:4700:3036::6815:d60
HTTPS + 1 . alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBvwAgACC8bFRG/HGtd0OTaBGDGE/0zbgDA8OiWW/uFaEg6uJvEwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1 − 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBBNAAgACDWE5Ouo0qS2x4fx6qCiE7xBM2IRX8xfaHcaxap1ZEJCwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:84c9,2606:4700:3036::6815:d60
SOA + serial 2410150381 − serial 2410121814
2026-07-21 15:00:28
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBBNAAgACDWE5Ouo0qS2x4fx6qCiE7xBM2IRX8xfaHcaxap1ZEJCwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:84c9,2606:4700:3036::6815:d60 − 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBB+wAgACDfNj0YRKJr4DYWks5qn/EN9d3umaFGYNofRG0PZwq3QgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:84c9,2606:4700:3036::6815:d60
SOA + serial 2410121814 − serial 2405048675
2026-06-28 20:50:24
NS + emerson.ns.cloudflare.com + jean.ns.cloudflare.com
A + 104.21.13.96 + 172.67.132.201
AAAA + 2606:4700:3035::ac43:84c9 + 2606:4700:3036::6815:d60
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBB+wAgACDfNj0YRKJr4DYWks5qn/EN9d3umaFGYNofRG0PZwq3QgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:84c9,2606:4700:3036::6815:d60
SOA + serial 2405048675
DNSSEC + insecure − indeterminate
2026-06-21 16:16:54 no changes
2026-06-21 11:23:30
NS − emerson.ns.cloudflare.com − jean.ns.cloudflare.com
A − 104.21.13.96 − 172.67.132.201
AAAA − 2606:4700:3035::6815:d60 − 2606:4700:3036::ac43:84c9
HTTPS − 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBBGgAgACC+bHDG9yFBCGaS/VgqRjWBukjZ0XqAZEQryWDfi8LrNwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:d60,2606:4700:3036::ac43:84c9
SOA − serial 2405048675
DNSSEC + indeterminate − insecure
2026-06-19 14:19:18
A + 104.21.13.96 + 172.67.132.201 − 188.114.96.1 − 188.114.97.1
AAAA + 2606:4700:3035::6815:d60 + 2606:4700:3036::ac43:84c9 − 2a06:98c1:3120::1 − 2a06:98c1:3121::1
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBBGgAgACC+bHDG9yFBCGaS/VgqRjWBukjZ0XqAZEQryWDfi8LrNwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:d60,2606:4700:3036::ac43:84c9 − 1 . alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBB4AAgACDCYF+8kn+lkITHi/BN3p8uJF8P53PV1auDSJxA263SZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1
2026-06-17 10:34:16
A + 188.114.96.1 + 188.114.97.1 − 104.21.13.96 − 172.67.132.201
AAAA + 2a06:98c1:3120::1 + 2a06:98c1:3121::1 − 2606:4700:3035::6815:d60 − 2606:4700:3036::ac43:84c9
HTTPS + 1 . alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBB4AAgACDCYF+8kn+lkITHi/BN3p8uJF8P53PV1auDSJxA263SZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1 − 1 . alpn="h3,h2" ipv4hint=104.21.13.96,172.67.132.201 ech=AEX+DQBB4AAgACDCYF+8kn+lkITHi/BN3p8uJF8P53PV1auDSJxA263SZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:d60,2606:4700:3036::ac43:84c9
2026-06-17 10:27:40 baseline 2 NS · 2 A · 2 AAAA · 1 HTTPS · serial 2405048675 · 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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