christianuldahl.dk

Records from scan: 2026-09-30 11:42:49 · 566ms total · last checked 2026-10-17 04:59 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

christianuldahl.dk is a .dk domain served by 2 nameservers (ns1.dns.services, ns2.dns.services). It was registered on 9 December 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.221.124.15 is hosted by CoMaSys ApS (AS51377) in Denmark. Mail is handled by scan1.comasys.dk, scan3.comasys.dk and 1 more. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 29ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dns.services	195.242.131.6 2001:67c:564:ffff::11	ns1.dns.services ns1.dns.services	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.dns.services	2a00:1b18:2:3:3::2 62.69.152.37	ns2.dns.services ns2.dns.services	AS47527 DLX A/S AS47527 DLX A/S

🌍 A Records#

1 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.221.124.15	3600s	—	AS51377	CoMaSys ApS	193.221.124.0/24	🇩🇰 Denmark	—

📧 MX Records#

3 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	scan1.comasys.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk mx14.centerasecurity.dk mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
10	3600s	scan3.comasys.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk mx14.centerasecurity.dk mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
20	3600s	scan2.comasys.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk mx14.centerasecurity.dk mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	193.221.124.15
🔶 Autoconfig	193.221.124.15

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 119ms

TXT Record
v=spf1 include:_spf.comasys.dk -all

✉️ SPF#

Policy	Record (christianuldahl.dk)
-all (hard fail)	v=spf1 include:_spf.comasys.dk -all

📨 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#

checked 2026-10-09 15:23:33

www	193.221.124.15 (AS51377) (address records, no CNAME)
www vs bare domain	Same network christianuldahl.dk: 193.221.124.15 (AS51377) www.christianuldahl.dk: 193.221.124.15 (AS51377)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

80ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

22ms

Field	Value
Serial	2022072802
Primary NS (MNAME)	ns1.dns.services
Responsible (RNAME)	hostmaster@comasys.dk
Refresh	10800s
Retry	3600s
Expire	2419000s
Minimum (neg-cache TTL)	43200s

📋 Registration#

WHOIS fetched 2026-10-09 13:36:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-12-09
Expires	2026-12-31 (74d)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

39ms

43ms

AAAA

37ms

TXT

119ms

CAA

24ms

HTTPS

39ms

TLSA

70ms

SOA

22ms

MTA-STS

46ms

DNSSEC

80ms

SRV

56ms

Total

566ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 11:42:49 shown	566ms	2 NS 1 A 3 MX	🔓 Insecure
2026-08-27 13:12:24	670ms	2 NS 1 A 3 MX	🔓 Insecure
2026-08-24 14:34:08	1616ms	2 NS 1 A 3 MX	🔓 Insecure
2026-06-16 20:43:39	411ms	2 NS 1 A 3 MX	🔓 Insecure
2026-06-16 20:40:34	583ms	2 NS 1 A 3 MX	🔓 Insecure