21montering.dk

📜 Historical scan 2026-09-23 19:19:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

21montering.dk is a .dk domain served by 2 nameservers (udns1.cscdns.net, udns2.cscdns.uk). It was registered on 16 November 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx01.dandomain.dk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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 48ms

Nameserver	IP addresses	PTR	ASN / ISP
udns1.cscdns.net	2001:502:f3ff::201 204.74.66.1	udns1.cscdns.net ns1.alba.bank	AS12008 Vercara, LLC AS12008 Vercara, LLC
udns2.cscdns.uk	2001:502:4612::201 204.74.111.1	udns2.cscdns.net ns2.webipdns.com.au	AS12008 Vercara, LLC AS12008 Vercara, LLC

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx01.dandomain.dk	212.237.249.50	mx1.dandomain.dk	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 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#

latest probe, not this scan · checked 2026-10-09 09:31:10

www	NXDOMAIN
www vs bare domain	Neither resolves 21montering.dk: no address www.21montering.dk: no address
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

123ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2019102606
Primary NS (MNAME)	udns1.cscdns.net
Responsible (RNAME)	premiumdns@support.neustar
Refresh	28800s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-15 09:39:12

Field	Value
Registrar	CSC Digital Brand Service, Inc
Registered	2016-11-16
Expires	2026-11-30 (40d)

🔗 Same registrant#

4 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
godt-taenkt.dk	CSC Digital Brand Service, Inc
invita-gt.dk	CSC Digital Brand Service, Inc
k21montering.dk	CSC Digital Brand Service, Inc
norema.dk	CSC Digital Brand Service, Inc

📋 WHOIS#

⏱️ Lookup Timing#

48ms

46ms

43ms

AAAA

54ms

TXT

210ms

CAA

37ms

HTTPS

42ms

TLSA

46ms

SOA

0ms

MTA-STS

61ms

DNSSEC

123ms

SRV

66ms

Total

567ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 09:31:10	455ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-30 04:16:44	584ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-23 19:19:36 shown	567ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-10 08:42:39	555ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-25 20:24:50	9454ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 16:24:47	735ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 12:45:56	611ms	2 NS 1 A 1 MX	🔓 Insecure