3rt.dk DNS records

🖥️ Nameservers2 records 268ms

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 Records1 records 256ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.211.38	600s	domain-parking.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 232ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

🔷 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

🔗 TLSA / DANE

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

🔐 DNSSEC469ms

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

🏷️ SOA279ms

Field	Value
Serial	2026061501
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

268ms

A

256ms

MX

232ms

AAAA

267ms

TXT

557ms

CAA

244ms

HTTPS

235ms

TLSA

187ms

SOA

279ms

MTA-STS

301ms

DNSSEC

469ms

SRV

325ms

Total

2251ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-29 12:06:42	9740ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-28 03:29:56	1036ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-27 03:15:26	639ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-26 02:37:57	949ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-25 02:26:59	727ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-24 01:47:59	9675ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-23 00:45:24	752ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-22 00:28:57	686ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-20 13:31:19	761ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-19 12:48:32	8682ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-18 10:05:36	939ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-17 07:53:26	779ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-14 13:03:10	669ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-11 08:06:32	752ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-08 18:44:19	753ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-06 13:38:56	1169ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-05 07:11:58	1820ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-04 07:11:08	1183ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-03 03:32:28	418ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-06-27 09:12:54	1352ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 00:28:37	494ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 10:32:10	564ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 21:32:33	2251ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 03:50:30	1071ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 12:42:29	633ms	2 NS 1 A 0 MX	🔒 Secure	View