classicroom.dk
📜 DNS record history  ·  ← Current records
📜 Record History7 scans · 11 changes
Scanned AtChanges since previous scan
2026-09-04 06:20:06
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBmQAgACBZ1XJ1Wx4OpIsqzky8Kl2n/l8VEWk+oWIVV9Aa4EncNAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde − 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBywAgACBPN5ywDnikoHkuqZfJAT5lnj+3/jUcWaKHlz2inJ2qTAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde
2026-08-24 03:24:16
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBywAgACBPN5ywDnikoHkuqZfJAT5lnj+3/jUcWaKHlz2inJ2qTAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde − 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBZAAgACDvuLFh8nj8bycdoLV8Rnvb2dhflxSdZrAwywR/kKzYMwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde
SOA + serial 2413001195 − serial 2412785574
2026-08-22 00:01:54
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBZAAgACDvuLFh8nj8bycdoLV8Rnvb2dhflxSdZrAwywR/kKzYMwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde − 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBB6QAgACDPcbs3irwTneIrxwAFJ1CFOUEC9MuA2Bbql9vA+WpdXwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde
SOA + serial 2412785574 − serial 2412057527
2026-08-13 11:54:31
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBB6QAgACDPcbs3irwTneIrxwAFJ1CFOUEC9MuA2Bbql9vA+WpdXwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde − 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBgQAgACBYD8owvkAJn1R2LQt3d+fRKKUWp5tv8/hawaf5EQg2WwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde
SOA + serial 2412057527 − serial 2407407523
2026-07-19 03:09:22
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBgQAgACBYD8owvkAJn1R2LQt3d+fRKKUWp5tv8/hawaf5EQg2WwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde − 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBXwAgACBLKUEN2NWWhuU5aMH7rjU3MAP7W8ybI3i+dAH+QE1FWQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde
2026-06-20 13:19:29
AAAA + 2606:4700:3032::6815:4a99 + 2606:4700:3033::ac43:cbde − 2606:4700:3030::6815:4a99 − 2606:4700:3031::ac43:cbde
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBXwAgACBLKUEN2NWWhuU5aMH7rjU3MAP7W8ybI3i+dAH+QE1FWQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a99,2606:4700:3033::ac43:cbde − 1 . alpn="h3,h2" ipv4hint=104.21.74.153,172.67.203.222 ech=AEX+DQBBlwAgACARtnhQ7LTw1FhCMpClda8WTnV4Yh2JhRcKaIGJtucSdAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:4a99,2606:4700:3031::ac43:cbde
SOA + serial 2407407523 − serial 2407108753
2026-06-16 21:06:21 baseline 2 NS · 2 A · 2 AAAA · 1 HTTPS · serial 2407108753 · 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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