ulfborgkollegie.dk

📜 Historical scan 2026-09-23 22:18:34  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ulfborgkollegie.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 August 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.22.75.231 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by mx1.pub.mailpod14-cph3.one.com, mx2.pub.mailpod14-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, has no 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   31ms
NameserverIP addressesPTRASN / 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   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.22.75.231 3600s — AS39642 Sinal A/S 185.22.72.0/22 🇩🇰 Denmark Viborg

📧 MX Records#

4 records   34ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod14-cph3.one.com 185.10.9.212 mx1.pub.mailpod14-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod14-cph3.one.com 185.10.9.213 mx2.pub.mailpod14-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod14-cph3.one.com 185.10.9.214 mx3.pub.mailpod14-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod14-cph3.one.com 185.10.9.215 mx4.pub.mailpod14-cph3.one.com AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-14 14:59:05
www46.30.211.38 (AS51468) (address records, no CNAME)
www vs bare domainDifferent networks
ulfborgkollegie.dk: 185.22.75.231 (AS39642)
www.ulfborgkollegie.dk: 46.30.211.38 (AS51468)
(all like this)
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.ulfborgkollegie.dk 3bX0Bs0Yt_U1WUq6rJoYulzDue59AMehpUpipJjBBBA
TXT _acme-challenge.ulfborgkollegie.dk 9W1YJljS1BtnuJ8zgAMlgweMUP9Xd3VFt0nm-mkPJC4
TXT _acme-challenge.ulfborgkollegie.dk VyXsY9DzkDDeezGv3-34WyzRKdNbA0WE47AlASvSt5o
TXT _acme-challenge.ulfborgkollegie.dk rI3HcZKulRoXFqkIzTmVsfePtoJqtJQ4F1D1muUf3Bk

🔗 TLSA / DANE#

4 records   69ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 42A27444ECBF3C0485409E27E2A6AB15…
SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 42A27444ECBF3C0485409E27E2A6AB15…
SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 42A27444ECBF3C0485409E27E2A6AB15…
SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com DANE-EE · SPKI · SHA-256 42A27444ECBF3C0485409E27E2A6AB15…

🔐 DNSSEC#

68ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026081205
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-23 12:24:05
FieldValue
RegistrarONE.COM A/S
Registered2024-08-15
Expires2027-08-14 (292d)

🔗 Same registrant#

5 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).

DomainRegistrar
hackman.dkPunktum dk A/S (direct)
havealmanak.dkPunktum dk A/S (direct)
pcvdata.dkPunktum dk A/S (direct)
soccloud.dkPunktum dk A/S (direct)
vidkaerhoej.dkONE.COM A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
31ms
A
38ms
MX
34ms
AAAA
31ms
TXT
150ms
CAA
34ms
HTTPS
41ms
TLSA
69ms
SOA
0ms
MTA-STS
43ms
DNSSEC
68ms
SRV
54ms
Total
556ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-14 14:59:05 456ms 2 NS 1 A 1 MX 🔒 Secure
2026-10-08 08:10:37 579ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-23 22:18:34 shown 556ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-15 01:57:42 633ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-26 09:16:42 4917ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-12 21:42:42 4236ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-04 12:25:17 1365ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-02 19:09:40 859ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-18 04:25:03 6994ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-14 19:37:32 4959ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-20 20:41:22 1111ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-20 18:07:20 1169ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-17 23:52:09 1532ms 2 NS 1 A 4 MX 🔒 Secure
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