houborg.dk

📜 Historical scan 2026-07-26 11:37:06 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

houborg.dk is a .dk domain served by 2 nameservers (angela.ns.cloudflare.com, yisroel.ns.cloudflare.com). It was registered on 19 May 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.21.155 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route2.mx.cloudflare.net, route1.mx.cloudflare.net and 1 more. The zone is of unknown DNSSEC status, has no 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 39ms

Nameserver	IP addresses	PTR	ASN / ISP
angela.ns.cloudflare.com	108.162.192.65 172.64.32.65 173.245.58.65 2606:4700:50::adf5:3a41 2803:f800:50::6ca2:c041 2a06:98c1:50::ac40:2041	angela.ns.cloudflare.com angela.ns.cloudflare.com angela.ns.cloudflare.com angela.ns.cloudflare.com angela.ns.cloudflare.com angela.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
yisroel.ns.cloudflare.com	108.162.195.185 162.159.44.185 172.64.35.185 2606:4700:58::a29f:2cb9 2803:f800:50::6ca2:c3b9 2a06:98c1:50::ac40:23b9	yisroel.ns.cloudflare.com yisroel.ns.cloudflare.com yisroel.ns.cloudflare.com yisroel.ns.cloudflare.com yisroel.ns.cloudflare.com yisroel.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 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.21.155	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.199.84	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
2	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
29	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
83	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	188.114.97.1
🔶 Autoconfig	104.21.21.155

🔷 AAAA Records (IPv6)#

2 records 55ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:159b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:c754	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 52ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.21.155,172.67.199.84 ech=AEX+DQBB7AAgACB2Z24PgQYGz28k+kS+eO8LbK6PKbRzUTK+59/HOmXnVAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:159b,2606:4700:3034::ac43:c754

📝 TXT Records#

1 records 8268ms

TXT Record
v=spf1 include:_spf.google.com include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (houborg.dk)
~all (soft fail)	v=spf1 include:_spf.google.com include:_spf.mx.cloudflare.net ~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#

latest probe, not this scan · checked 2026-10-17 12:03:10

www	104.21.21.155 172.67.199.84 2606:4700:3033::6815:159b 2606:4700:3034::ac43:c754 (AS13335) (address records, no CNAME)
www vs bare domain	Same network houborg.dk: 188.114.96.1 188.114.97.1 2606:4700:3033::6815:159b 2606:4700:3034::ac43:c754 (AS13335) www.houborg.dk: 104.21.21.155 172.67.199.84 2606:4700:3033::6815:159b 2606:4700:3034::ac43:c754 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

9 records 136ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…

🔐 DNSSEC#

128ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'houborg.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

48ms

Field	Value
Serial	2410063375
Primary NS (MNAME)	angela.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 08:11:05

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-05-19
Expires	2027-06-30 (254d)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

50ms

42ms

AAAA

55ms

TXT

8268ms

CAA

31ms

HTTPS

52ms

TLSA

136ms

SOA

48ms

MTA-STS

56ms

DNSSEC

128ms

SRV

104ms

Total

41611ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 12:12:03	2974ms	2 NS 2 A 3 MX	🔓 Insecure
2026-10-06 07:51:43	581ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-19 17:12:28	1481ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-12 15:17:10	1236ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-07 23:14:57	1307ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-05 06:14:47	2755ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-09 18:35:27	2118ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-26 11:37:06 shown	41611ms	2 NS 2 A 3 MX	❓ Unknown
2026-07-21 00:59:28	2992ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-20 20:25:41	3313ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-17 15:02:37	281ms	0 NS 0 A 0 MX	❓ Unknown