exchangestudent.dk
📜 DNS record history  ·  ← Current records
📜 Record History12 scans · 35 changes
Scanned AtChanges since previous scan
2026-08-27 05:00:11
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBbwAgACCcSqCCymWbpZSh2MukAi6EK9cGHbJNtMgI/KWdWVcZYAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831 − 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBhgAgACD3kTKr4mmhdmqt93xaex5UtQANHHI70Pr93iCzaPMBDwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831
SOA + serial 2413252764 − serial 2413194014
2026-08-26 04:56:02
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBhgAgACD3kTKr4mmhdmqt93xaex5UtQANHHI70Pr93iCzaPMBDwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831 − 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBB9AAgACD3ERJYIyHv89YHXNmqxmsBt/DtotScGXwetZzWWVbEAwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831
SOA + serial 2413194014 − serial 2412781560
2026-08-21 21:02:36
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBB9AAgACD3ERJYIyHv89YHXNmqxmsBt/DtotScGXwetZzWWVbEAwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831 − 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBfAAgACCaSdKfOkVtfgrEvjJZeX9Z9pz8VM9uru6pv09/4UTVLgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831
SOA + serial 2412781560 − serial 2412638542
2026-08-19 19:29:29
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBfAAgACCaSdKfOkVtfgrEvjJZeX9Z9pz8VM9uru6pv09/4UTVLgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831 − 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBqAAgACCkbYjC6ahQnzGO1ofed/lHK5diGeeqBzQpqVcZhRUHSgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831
SOA + serial 2412638542 − serial 2412424249
2026-08-17 07:42:12
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBqAAgACCkbYjC6ahQnzGO1ofed/lHK5diGeeqBzQpqVcZhRUHSgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831 − 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBvAAgACAO3unMAto2NEMjstTmWw8B+4FfoNC7pAFUfu/9Q6wwIwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831
SOA + serial 2412424249 − serial 2412275529
2026-08-15 17:18:04
A + 104.21.36.22 + 172.67.184.49 − 188.114.96.3 − 188.114.97.3
AAAA + 2606:4700:3031::6815:2416 + 2606:4700:3033::ac43:b831 − 2a06:98c1:3120::3 − 2a06:98c1:3121::3
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBvAAgACAO3unMAto2NEMjstTmWw8B+4FfoNC7pAFUfu/9Q6wwIwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831 − 1 . alpn="h3,h2" ipv4hint=188.114.96.3,188.114.97.3 ech=AEX+DQBB0gAgACCuJSUoL8rcJzDYDojxxXs3brXUBJoM8JdOkv3DV4OyIAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::3,2a06:98c1:3121::3
SOA + serial 2412275529 − serial 2412203671
2026-08-14 16:54:01
A + 188.114.96.3 + 188.114.97.3 − 104.21.36.22 − 172.67.184.49
AAAA + 2a06:98c1:3120::3 + 2a06:98c1:3121::3 − 2606:4700:3031::6815:2416 − 2606:4700:3033::ac43:b831
HTTPS + 1 . alpn="h3,h2" ipv4hint=188.114.96.3,188.114.97.3 ech=AEX+DQBB0gAgACCuJSUoL8rcJzDYDojxxXs3brXUBJoM8JdOkv3DV4OyIAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::3,2a06:98c1:3121::3 − 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBB8wAgACCv0uuXlIaW7+SuYbb7Ka2bXr6DKJNqom5EJI+QWSN9fQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831
SOA + serial 2412203671 − serial 2408151438
2026-06-28 18:56:25
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBB8wAgACCv0uuXlIaW7+SuYbb7Ka2bXr6DKJNqom5EJI+QWSN9fQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831 − 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBiAAgACAN2hk9bvBGtP9ffyP9bN01kIvEDIB/fu3zn2zzpo1qOgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831
SOA + serial 2408151438 − serial 2403898803
2026-06-26 02:13:40
A + 104.21.36.22 + 172.67.184.49 − 188.114.96.1 − 188.114.97.1
AAAA + 2606:4700:3031::6815:2416 + 2606:4700:3033::ac43:b831 − 2a06:98c1:3120::1 − 2a06:98c1:3121::1
HTTPS + 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBiAAgACAN2hk9bvBGtP9ffyP9bN01kIvEDIB/fu3zn2zzpo1qOgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831 − 1 . alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBNwAgACB/B47aCS3tl0a1Rm6udZGalRPgKjXjFi2L1uDwiEdDXgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1
2026-06-23 00:47:15
NS + harlee.ns.cloudflare.com + rudy.ns.cloudflare.com
A + 188.114.96.1 + 188.114.97.1
AAAA + 2a06:98c1:3120::1 + 2a06:98c1:3121::1
HTTPS + 1 . alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBNwAgACB/B47aCS3tl0a1Rm6udZGalRPgKjXjFi2L1uDwiEdDXgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1
SOA + serial 2403898803
DNSSEC + insecure − indeterminate
2026-06-22 01:09:46
NS − harlee.ns.cloudflare.com − rudy.ns.cloudflare.com
A − 104.21.36.22 − 172.67.184.49
AAAA − 2606:4700:3031::6815:2416 − 2606:4700:3033::ac43:b831
HTTPS − 1 . alpn="h3,h2" ipv4hint=104.21.36.22,172.67.184.49 ech=AEX+DQBBDgAgACDzCpMlW2zuKCEyF31MigmBsD2TewLMErZT4gaCsNerPwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2416,2606:4700:3033::ac43:b831
SOA − serial 2403898803
DNSSEC + indeterminate − insecure
2026-06-17 09:08:52 baseline 2 NS · 2 A · 2 AAAA · 1 HTTPS · serial 2403898803 · DNSSEC insecure

Each row compares a scan to the one before it. “baseline” is the oldest scan in the window (last 12 scans). Click a timestamp to view that full snapshot.

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