rumteknik.dk

📜 Historical scan 2026-09-24 12:38:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rumteknik.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 1 December 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.4.125.209 is hosted by RouteLabel V.O.F. (AS198203) in The Netherlands. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, 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#

4 records 28ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
81.4.125.209	1800s	—	AS198203	RouteLabel V.O.F.	81.4.120.0/21	🇳🇱 The Netherlands	—

📧 MX Records#

5 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	172.253.152.26 2a00:1450:4010:c0a::1a 2a00:1450:4010:c0a::1a	yulpptr-in-f26.1e100.net lm-in-x1a.1e100.net lm-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	81.4.125.209
🔶 Autoconfig	81.4.125.209

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 154ms

TXT Record
google-site-verification=m-2z0Ni5VV8CJwkGnsfO0VI8lBzXW_JOyb-_OQdPUpE
google-site-verification=tp3MTfzyh8mE4fwTf3AA_4QR6OnoESWEQfcbUF6xa-s
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (rumteknik.dk)
~all (soft fail)	v=spf1 include:_spf.google.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 2026-10-13 06:58:54

www	81.4.125.209 (AS198203) (address records, no CNAME)
www vs bare domain	Same network rumteknik.dk: 81.4.125.209 (AS198203) www.rumteknik.dk: 81.4.125.209 (AS198203)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

80ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2022021200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-06 10:53:37

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-12-01
Expires	2027-04-30 (195d)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

40ms

46ms

AAAA

39ms

TXT

154ms

CAA

28ms

HTTPS

30ms

TLSA

197ms

SOA

0ms

MTA-STS

49ms

DNSSEC

80ms

SRV

66ms

Total

822ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 06:58:54	1139ms	4 NS 1 A 5 MX	🔒 Secure
2026-10-02 13:41:07	632ms	4 NS 1 A 5 MX	🔒 Secure
2026-09-24 12:38:33 shown	822ms	4 NS 1 A 5 MX	🔒 Secure
2026-06-20 11:14:06	881ms	4 NS 1 A 5 MX	🔒 Secure
2026-06-17 11:31:39	1314ms	4 NS 1 A 5 MX	🔒 Secure