skuldborg.dk

📜 Historical scan 2026-08-27 11:08:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

skuldborg.dk is a .dk domain served by 2 nameservers (jeff.ns.cloudflare.com, lady.ns.cloudflare.com). It was registered on 24 April 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.67.221 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 41ms

Nameserver	IP addresses	PTR	ASN / ISP
jeff.ns.cloudflare.com	108.162.193.124 172.64.33.124 173.245.59.124 2606:4700:58::adf5:3b7c 2803:f800:50::6ca2:c17c 2a06:98c1:50::ac40:217c	jeff.ns.cloudflare.com jeff.ns.cloudflare.com jeff.ns.cloudflare.com jeff.ns.cloudflare.com jeff.ns.cloudflare.com jeff.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lady.ns.cloudflare.com	108.162.192.127 172.64.32.127 173.245.58.127 2606:4700:50::adf5:3a7f 2803:f800:50::6ca2:c07f 2a06:98c1:50::ac40:207f	lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com lady.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.67.221	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.182.12	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	91.221.196.251
🔶 Autoconfig	91.221.196.251

🔷 AAAA Records (IPv6)#

2 records 54ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:43dd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:b60c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 51ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.67.221,172.67.182.12 ech=AEX+DQBB8gAgACDBlaShUNszepVlr+fR4WskQoMKgriqZm6u9xrVV0BFJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:43dd,2606:4700:3032::ac43:b60c

📝 TXT Records#

1 records 237ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (skuldborg.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.skuldborg.dk)
p=reject	v=DMARC1; p=reject;

📬 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 2026-10-09 01:50:11

www	104.21.67.221 172.67.182.12 2606:4700:3031::6815:43dd 2606:4700:3032::ac43:b60c (AS13335) (address records, no CNAME)
www vs bare domain	Same network skuldborg.dk: 104.21.67.221 172.67.182.12 2606:4700:3031::6815:43dd 2606:4700:3032::ac43:b60c (AS13335) www.skuldborg.dk: 104.21.67.221 172.67.182.12 2606:4700:3031::6815:43dd 2606:4700:3032::ac43:b60c (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

110ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413236619
Primary NS (MNAME)	jeff.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 01:40:28

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-04-24
Expires	2027-04-30 (191d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

41ms

35ms

40ms

AAAA

54ms

TXT

237ms

CAA

41ms

HTTPS

51ms

TLSA

68ms

SOA

0ms

MTA-STS

44ms

DNSSEC

110ms

SRV

82ms

Total

861ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 23:29:08	463ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-13 20:41:50	777ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-02 12:43:14	636ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 11:08:54 shown	861ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-15 10:02:47	2693ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-02 11:39:37	812ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-19 18:14:42	524ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 11:49:51	952ms	2 NS 2 A 0 MX	🔓 Insecure