dvt.dk DNS records

🖥️ Nameservers2 records 98ms

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 85ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	3600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records2 records 99ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	d337406.a.ess.de.barracudanetworks.com	18.185.115.250 18.185.115.251 18.185.115.252	mail.ess.de.barracuda.com mail.ess.de.barracuda.com mail.ess.de.barracuda.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
0	3600s	d337406.b.ess.de.barracudanetworks.com	18.185.115.250 18.185.115.251 18.185.115.252	mail.ess.de.barracuda.com mail.ess.de.barracuda.com mail.ess.de.barracuda.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 162ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 532ms

TXT Record
MS=ms32969544
v=spf1 include:spf.protection.outlook.com include:spf.ess.de.barracudanetworks.com -all

✉️ SPF

Policy	Record (dvt.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.ess.de.barracudanetworks.com -all

📨 DMARC

Policy	Record (_dmarc.dvt.dk)
p=none (monitor only)	v=DMARC1; p=none; fo=1; rua=mailto:rua+dvt.dk@dmarc.barracudanetworks.com; ruf=mailto:ruf+dvt.dk@dmarc.barracudanetworks.com

📬 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)

🔐 DNSSEC410ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082305
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

98ms

A

85ms

MX

99ms

AAAA

110ms

TXT

532ms

CAA

76ms

HTTPS

65ms

TLSA

573ms

SOA

0ms

MTA-STS

114ms

DNSSEC

410ms

SRV

162ms

Total

4104ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-23 22:07:26	4104ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-12 17:58:20	1176ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-10 21:13:43	5146ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-13 06:12:57	1099ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-25 19:15:10	655ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-20 02:57:37	903ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-20 02:46:21	1522ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-18 22:31:32	719ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 05:05:46	625ms	2 NS 1 A 2 MX	🔒 Secure	View