ferieboliger.dk

📜 Historical scan 2026-09-08 16:16:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ferieboliger.dk is a .dk domain served by 2 nameservers (isabel.ns.cloudflare.com, norman.ns.cloudflare.com). It was registered on 16 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.89.121 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, 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 79ms

Nameserver	IP addresses	PTR	ASN / ISP
isabel.ns.cloudflare.com	108.162.194.104 162.159.38.104 172.64.34.104 2606:4700:50::a29f:2668 2803:f800:50::6ca2:c268 2a06:98c1:50::ac40:2268	isabel.ns.cloudflare.com isabel.ns.cloudflare.com isabel.ns.cloudflare.com isabel.ns.cloudflare.com isabel.ns.cloudflare.com isabel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
norman.ns.cloudflare.com	108.162.193.217 172.64.33.217 173.245.59.217 2606:4700:58::adf5:3bd9 2803:f800:50::6ca2:c1d9 2a06:98c1:50::ac40:21d9	norman.ns.cloudflare.com norman.ns.cloudflare.com norman.ns.cloudflare.com norman.ns.cloudflare.com norman.ns.cloudflare.com norman.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 117ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.89.121	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.141.223	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 157ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.89.121
🔶 Autoconfig	104.21.89.121

🔷 AAAA Records (IPv6)#

2 records 89ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:8ddf	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:5979	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 80ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.89.121,172.67.141.223 ech=AEX+DQBBTAAgACBeFowSbEyWCJQIR4MJVRcpOwhWBHWOzF67AxnGd2XQGwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:8ddf,2606:4700:3035::6815:5979

📝 TXT Records#

1 records 283ms

TXT Record
v=spf1 include:spf.simply.com ~all

✉️ SPF#

Policy	Record (ferieboliger.dk)
~all (soft fail)	v=spf1 include:spf.simply.com ~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 2026-10-07 16:11:48

www	104.21.89.121 172.67.141.223 2606:4700:3033::ac43:8ddf 2606:4700:3035::6815:5979 (AS13335) (address records, no CNAME)
www vs bare domain	Same network ferieboliger.dk: 104.21.89.121 172.67.141.223 2606:4700:3033::ac43:8ddf 2606:4700:3035::6815:5979 (AS13335) www.ferieboliger.dk: 104.21.89.121 172.67.141.223 2606:4700:3033::ac43:8ddf 2606:4700:3035::6815:5979 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.ferieboliger.dk	UkPo2Y_ASFcBS5IyMGDVeg8Nre6r54R8jbLGz7qE_4I
TXT	_acme-challenge.ferieboliger.dk	YC9QtVhCiqvevROiVtpSNlTNqr8hT4eRARd3obAcNAE

🔗 TLSA / DANE#

2 records 341ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

181ms

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	2413795222
Primary NS (MNAME)	isabel.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-17 16:40:37

Field	Value
Registrar	Simply.com A/S
Registered	1998-02-16
Expires	2027-05-31 (216d)

🔗 Same registrant#

9 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
ferieboligweb.dk	Simply.com A/S
ferienhaus-daenemark.dk	Punktum dk A/S (direct)
ferienhaus-privat.dk	Simply.com A/S
ferienwohnung.dk	Simply.com A/S
hunde-guide.dk	Simply.com A/S
nemme-madopskrifter.dk	Simply.com A/S
poolhaus-daenemark.dk	Simply.com A/S
sommerferienu.dk	Simply.com A/S
sommerhusportalen.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

79ms

117ms

157ms

AAAA

89ms

TXT

283ms

CAA

127ms

HTTPS

80ms

TLSA

341ms

SOA

0ms

MTA-STS

131ms

DNSSEC

181ms

SRV

157ms

Total

1937ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 13:46:41	1490ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-16 13:09:22	868ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-08 16:16:03 shown	1937ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 02:51:09	1843ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-21 03:13:38	846ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 03:02:55	879ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 14:19:22	1025ms	2 NS 2 A 1 MX	❓ Unknown
2026-06-24 05:15:05	1723ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 14:00:27	1178ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 05:39:10	903ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 18:00:34	647ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 09:20:31	904ms	2 NS 2 A 1 MX	🔓 Insecure