cogco.dk
📜 DNS record history  ·  ← Current records
📜 Record History7 scans · 32 changes
Scanned AtChanges since previous scan
2026-07-31 15:16:43
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.44.41,172.67.194.205 ech=AEX+DQBBrwAgACB5nWtNX8shJf0THzXToQrTBRG+vX7lzsiWBjGNzySGegAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:c2cd,2606:4700:3034::6815:2c29 − 1 . alpn="h3,h2" ipv4hint=104.21.44.41,172.67.194.205 ech=AEX+DQBBiQAgACA9OlQ1lx8WBinYc9R8TMZci027kMfs7SgEA4D/dcuLdAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:c2cd,2606:4700:3034::6815:2c29
SOA + serial 2410981515 − serial 2405920810
2026-07-25 15:07:07
NS + ali.ns.cloudflare.com + terin.ns.cloudflare.com − ns1.curanet.dk − ns2.curanet.dk
A + 104.21.44.41 + 172.67.194.205 − 212.237.249.16
MX + 0 cogco-dk.mail.protection.outlook.com
AAAA + 2606:4700:3033::ac43:c2cd + 2606:4700:3034::6815:2c29
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.44.41,172.67.194.205 ech=AEX+DQBBiQAgACA9OlQ1lx8WBinYc9R8TMZci027kMfs7SgEA4D/dcuLdAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:c2cd,2606:4700:3034::6815:2c29
SOA + serial 2405920810 − serial 2026072303
2026-07-24 14:50:14
NS + ns1.curanet.dk + ns2.curanet.dk − ali.ns.cloudflare.com − terin.ns.cloudflare.com
A + 212.237.249.16 − 104.21.44.41 − 172.67.194.205
MX − 0 cogco-dk.mail.protection.outlook.com
AAAA − 2606:4700:3033::ac43:c2cd − 2606:4700:3034::6815:2c29
HTTPS − 1 . alpn="h3,h2" ipv4hint=104.21.44.41,172.67.194.205 ech=AEX+DQBBAAAgACD2W8FZNPXilLiFC/JYVZLvaYyCsa38UVtHKosEQjL0JgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:c2cd,2606:4700:3034::6815:2c29
SOA + serial 2026072303 − serial 2405920810
2026-06-27 09:40:46
NS + ali.ns.cloudflare.com + terin.ns.cloudflare.com
A + 104.21.44.41 + 172.67.194.205
MX + 0 cogco-dk.mail.protection.outlook.com
AAAA + 2606:4700:3033::ac43:c2cd + 2606:4700:3034::6815:2c29
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.44.41,172.67.194.205 ech=AEX+DQBBAAAgACD2W8FZNPXilLiFC/JYVZLvaYyCsa38UVtHKosEQjL0JgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:c2cd,2606:4700:3034::6815:2c29
SOA + serial 2405920810
DNSSEC + insecure − indeterminate
2026-06-24 02:19:12
NS − ali.ns.cloudflare.com − terin.ns.cloudflare.com
A − 104.21.44.41 − 172.67.194.205
MX − 0 cogco-dk.mail.protection.outlook.com
AAAA − 2606:4700:3031::ac43:c2cd − 2606:4700:3036::6815:2c29
HTTPS − 1 . alpn="h3,h2" ipv4hint=104.21.44.41,172.67.194.205 ech=AEX+DQBBlwAgACARtnhQ7LTw1FhCMpClda8WTnV4Yh2JhRcKaIGJtucSdAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:c2cd,2606:4700:3036::6815:2c29
SOA − serial 2405920810
DNSSEC + indeterminate − bogus
2026-06-16 21:50:15
A + 104.21.44.41 + 172.67.194.205 − 188.114.96.9 − 188.114.97.9
AAAA + 2606:4700:3031::ac43:c2cd + 2606:4700:3036::6815:2c29 − 2a06:98c1:3120::9 − 2a06:98c1:3121::9
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.44.41,172.67.194.205 ech=AEX+DQBBlwAgACARtnhQ7LTw1FhCMpClda8WTnV4Yh2JhRcKaIGJtucSdAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:c2cd,2606:4700:3036::6815:2c29 − 1 . alpn="h3,h2" ipv4hint=188.114.96.9,188.114.97.9 ech=AEX+DQBBlwAgACARtnhQ7LTw1FhCMpClda8WTnV4Yh2JhRcKaIGJtucSdAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::9,2a06:98c1:3121::9
DNSSEC + bogus − insecure
2026-06-16 21:40:42 baseline 2 NS · 2 A · 1 MX · 2 AAAA · 1 HTTPS · serial 2405920810 · 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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