netbyggeren.dk

Records from scan: 2026-10-09 22:40:39 · 1418ms total · last checked 2026-10-18 11:59 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

netbyggeren.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 January 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 159.253.90.12 is hosted by Itm8 A/S (AS42903) in Denmark. Mail is handled by netbyggeren-dk.mail.protection.outlook.com, mail.challenge-it.dk. The zone is DNSSEC-signed and validates, 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
159.253.90.12	43200s	—	AS42903	Itm8 A/S	159.253.88.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

2 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	netbyggeren-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::4 2a01:111:f403:ca38::a 2a01:111:f403:ca48::12 52.101.181.153 52.101.185.114 52.101.209.153 52.101.68.10	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation
20	1800s	mail.challenge-it.dk	—	—	—

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.154.152
🔶 Autoconfig	netbyggeren.dk → 159.253.90.12

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 257ms

TXT Record
MS=ms42962403
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (netbyggeren.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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#

checked 2026-10-09 22:40:39

www	159.253.90.12 (AS42903) (address records, no CNAME)
www vs bare domain	Same network netbyggeren.dk: 159.253.90.12 (AS42903) www.netbyggeren.dk: 159.253.90.12 (AS42903)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.netbyggeren.dk	netbyggeren.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

55ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

38ms

Field	Value
Serial	2026100901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-09 23:08:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2003-01-07
Expires	2027-01-31 (104d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

36ms

44ms

AAAA

30ms

TXT

257ms

CAA

46ms

HTTPS

49ms

TLSA

785ms

SOA

38ms

MTA-STS

50ms

DNSSEC

55ms

SRV

184ms

Total

1418ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 22:40:39 shown	1418ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-07 20:32:50	1261ms	2 NS 1 A 2 MX	🔒 Secure
2026-10-04 04:20:53	1172ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-23 17:02:11	1166ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-19 10:12:12	4667ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-13 04:44:31	2355ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-09 13:45:15	2342ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-07 17:38:07	9116ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-13 06:30:58	1541ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-30 07:16:37	1167ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-28 13:45:48	1481ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-26 02:57:09	907ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 23:18:56	1286ms	2 NS 1 A 2 MX	🔒 Secure