ac.dk

📜 Historical scan 2026-08-28 16:38:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ac.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 23 August 1996 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.216 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by dk.mx1.mailanyone.net, dk.mx2.mx25.net and 2 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 20ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.216	43200s	linux314.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

4 records 25ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	dk.mx1.mailanyone.net	192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd	mx41.electric.net mx11.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	43200s	dk.mx2.mx25.net	192.162.219.49	mx41.electric.net	AS16509 Amazon.com, Inc.
30	43200s	dk.mx3.mailanyone.net	192.162.219.255 2a01:77c0:1619:4101:d99:c22:fb4d:290e	mx41.electric.net mx10.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
40	43200s	dk.mx4.mx25.net	192.162.219.255	mx41.electric.net	AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 100ms

TXT Record
MS=ms75659897
v=spf1 a a:mail.iversenit.dk ip4:92.241.223.66 ip4:152.115.68.109 include:spf.protection.outlook.com include:_spf.createsend.com include:cmail1.com include:spf.mailanyone.net -all

✉️ SPF#

Policy	Record (ac.dk)
-all (hard fail)	v=spf1 a a:mail.iversenit.dk ip4:92.241.223.66 ip4:152.115.68.109 include:spf.protection.outlook.com include:_spf.createsend.com include:cmail1.com include:spf.mailanyone.net -all

📨 DMARC#

Policy	Record (_dmarc.ac.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:re+gxaopgdmen7@dmarc.postmarkapp.com; sp=none; aspf=r;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 13:24:14

www	93.191.156.216 (AS48854) (address records, no CNAME)
www vs bare domain	Same network ac.dk: 93.191.156.216 (AS48854) www.ac.dk: 93.191.156.216 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

8 records 253ms

Service / Owner	Type	Cert association
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…

🔐 DNSSEC#

95ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026081101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-13 13:48:35

Field	Value
Registrar	Simply.com A/S
Registered	1996-08-23
Expires	2027-09-30 (348d)

🔗 Same registrant#

3 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
akademikerne.dk	Simply.com A/S
forskerportal.dk	CURANET A/S
undervislovligt.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

20ms

30ms

25ms

AAAA

33ms

TXT

100ms

CAA

23ms

HTTPS

29ms

TLSA

253ms

SOA

0ms

MTA-STS

34ms

DNSSEC

95ms

SRV

65ms

Total

1672ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 13:24:14	529ms	2 NS 1 A 4 MX	🔒 Secure
2026-10-07 14:53:16	706ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-28 07:59:48	876ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-27 07:40:03	2576ms	3 NS 1 A 5 MX	🔒 Secure
2026-09-23 20:28:44	892ms	2 NS 1 A 4 MX	🔒 Secure
2026-09-21 16:04:20	1177ms	3 NS 1 A 5 MX	🔒 Secure
2026-09-12 16:28:06	1063ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-28 16:38:47 shown	1672ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-27 15:24:01	1218ms	3 NS 1 A 5 MX	🔒 Secure
2026-08-16 19:11:04	5510ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-12 22:24:20	2926ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-17 23:37:42	9535ms	2 NS 1 A 4 MX	🔒 Secure
2026-07-13 03:15:01	1396ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-23 09:19:17	4554ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-22 09:16:13	917ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 18:37:06	913ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 12:57:44	2036ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-16 12:52:50	2099ms	2 NS 1 A 4 MX	🔒 Secure