informationsbygning.dk

Records from scan: 2026-09-25 17:02:10 · 916ms total · last checked 2026-10-17 12:36 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

informationsbygning.dk is a .dk domain served by 2 nameservers (leonidas.ns.cloudflare.com, peaches.ns.cloudflare.com). It was registered on 9 June 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.27.79 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod10-cph3.one.com, mx2.pub.mailpod10-cph3.one.com and 2 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
leonidas.ns.cloudflare.com	108.162.195.101 162.159.44.101 172.64.35.101 2606:4700:58::a29f:2c65 2803:f800:50::6ca2:c365 2a06:98c1:50::ac40:2365	leonidas.ns.cloudflare.com leonidas.ns.cloudflare.com leonidas.ns.cloudflare.com leonidas.ns.cloudflare.com leonidas.ns.cloudflare.com leonidas.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
peaches.ns.cloudflare.com	108.162.194.239 162.159.38.239 172.64.34.239 2606:4700:50::a29f:26ef 2803:f800:50::6ca2:c2ef 2a06:98c1:50::ac40:22ef	peaches.ns.cloudflare.com peaches.ns.cloudflare.com peaches.ns.cloudflare.com peaches.ns.cloudflare.com peaches.ns.cloudflare.com peaches.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 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.27.79	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.141.212	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

4 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.pub.mailpod10-cph3.one.com	104.37.34.70	mx1.pub.mailpod10-cph3.one.com	AS51468 One.com A/S
10	300s	mx2.pub.mailpod10-cph3.one.com	104.37.34.71	mx2.pub.mailpod10-cph3.one.com	AS51468 One.com A/S
10	300s	mx3.pub.mailpod10-cph3.one.com	104.37.34.72	mx3.pub.mailpod10-cph3.one.com	AS51468 One.com A/S
10	300s	mx4.pub.mailpod10-cph3.one.com	104.37.34.73	mx4.pub.mailpod10-cph3.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.27.79
🔶 Autoconfig	104.21.27.79

🔷 AAAA Records (IPv6)#

2 records 53ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:8dd4	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:1b4f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.27.79,172.67.141.212 ech=AEX+DQBBOwAgACCzDzJzMsljjSqNIJS6VqMe9icCjkWe3EqSyqmWQkhNIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8dd4,2606:4700:3031::6815:1b4f

📝 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#

checked 2026-10-08 22:36:47

www	104.21.27.79 172.67.141.212 2606:4700:3030::ac43:8dd4 2606:4700:3031::6815:1b4f (AS13335) (address records, no CNAME)
www vs bare domain	Same network informationsbygning.dk: 104.21.27.79 172.67.141.212 2606:4700:3030::ac43:8dd4 2606:4700:3031::6815:1b4f (AS13335) www.informationsbygning.dk: 104.21.27.79 172.67.141.212 2606:4700:3030::ac43:8dd4 2606:4700:3031::6815:1b4f (AS13335)
Wildcard	Yes: any name under the zone resolves

🔗 TLSA / DANE#

4 records 73ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod10-cph3.one.com	DANE-EE · SPKI · SHA-256	6F2F6668E559087AD0C5D55F223128E2…
SMTP _25._tcp.mx2.pub.mailpod10-cph3.one.com	DANE-EE · SPKI · SHA-256	6F2F6668E559087AD0C5D55F223128E2…
SMTP _25._tcp.mx3.pub.mailpod10-cph3.one.com	DANE-EE · SPKI · SHA-256	6F2F6668E559087AD0C5D55F223128E2…
SMTP _25._tcp.mx4.pub.mailpod10-cph3.one.com	DANE-EE · SPKI · SHA-256	6F2F6668E559087AD0C5D55F223128E2…

🔐 DNSSEC#

126ms

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	2415756902
Primary NS (MNAME)	leonidas.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-14 15:59:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-06-09
Expires	2027-06-30 (255d)

🔗 Same registrant#

20 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
brugteglasfiberkar.dk	Punktum dk A/S (direct)
brugtsilo.dk	Punktum dk A/S (direct)
crm-sptt.dk	Punktum dk A/S (direct)
færdigetoiletbygninger.dk	Punktum dk A/S (direct)
horsekeeper.dk	Punktum dk A/S (direct)
jagtbåd.dk	DANDOMAIN A/S
lyskassen.dk	Punktum dk A/S (direct)
scan-plast.dk	Punktum dk A/S (direct)
scanplast.dk	Punktum dk A/S (direct)
servicebygning.dk	Punktum dk A/S (direct)
skydepram.dk	Punktum dk A/S (direct)
sp-invest.dk	Punktum dk A/S (direct)
sp-lyskasser.dk	Punktum dk A/S (direct)
toilet-bygning.dk	Punktum dk A/S (direct)
toilet-løsninger.dk	Punktum dk A/S (direct)
toilet-solutions.dk	Punktum dk A/S (direct)
toilethuse.dk	Punktum dk A/S (direct)
toiletløsning.dk	Punktum dk A/S (direct)
toiletløsninger.dk	Punktum dk A/S (direct)
tørklosetter.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

49ms

34ms

AAAA

53ms

TXT

192ms

CAA

40ms

HTTPS

37ms

TLSA

73ms

SOA

0ms

MTA-STS

69ms

DNSSEC

126ms

SRV

68ms

Total

916ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-25 17:02:10 shown	916ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-24 16:41:51	1828ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-16 21:21:58	4127ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-10 14:41:26	5277ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-22 22:17:40	860ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-22 18:08:30	1005ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 03:16:29	969ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-20 18:42:01	916ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 14:39:41	3069ms	2 NS 1 A 4 MX	🔒 Secure