rtk-cv.dk DNS records

🖥️ Nameservers2 records 54ms

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

🌍

No A records found

📧 MX Records5 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	43200s	aspmx.l.google.com	172.253.152.27 2a00:1450:4010:c05::1b 2a00:1450:4010:c05::1b	yulpptr-in-f27.1e100.net li-in-f27.1e100.net li-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	43200s	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	43200s	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	43200s	aspmx2.googlemail.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	43200s	aspmx3.googlemail.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 258ms

TXT Record
google-site-verification=HNfo_RWhaW4TSMf6ZQuO5ynKxYa6mOmju1KQKYOFTQE
v=spf1 include:_spf.google.com ~all

✉️ SPF

Policy	Record (rtk-cv.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC

Policy	Record (_dmarc.rtk-cv.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC160ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2026081601
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

54ms

A

50ms

MX

54ms

AAAA

55ms

TXT

258ms

CAA

79ms

HTTPS

55ms

TLSA

113ms

SOA

0ms

MTA-STS

67ms

DNSSEC

160ms

SRV

129ms

Total

1471ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-17 03:00:18	1471ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-08-11 23:05:03	1226ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-07-26 19:49:52	5243ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-06-22 17:32:06	710ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-06-22 15:33:56	946ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 02:53:25	1030ms	2 NS 0 A 5 MX	🔒 Secure	View
2026-06-17 12:59:51	1221ms	2 NS 0 A 5 MX	🔒 Secure	View