mono.dk DNS records

🖥️ Nameservers2 records 146ms

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 114ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.20.217.251	3600s	vps2.simpledigital.dk	AS21060	Atea A/S	178.20.216.0/23	🇩🇰 Denmark	—

📧 MX Records2 records 153ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	eu-esec-01.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
20	3600s	eu-esec-02.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 380ms

TXT Record
v=spf1 ip4:178.20.217.251 include:_custspf.one.com include:spf.protection.outlook.com include:spf-esec.heimdalsecurity.com -all

✉️ SPF

Policy	Record (mono.dk)
-all (hard fail)	v=spf1 ip4:178.20.217.251 include:_custspf.one.com include:spf.protection.outlook.com include:spf-esec.heimdalsecurity.com -all

📨 DMARC

Policy	Record (_dmarc.mono.dk)
p=none (monitor only)	v=DMARC1;p=none;pct=100;rua=mailto:dmarc@mono.dk;fo=1

📬 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 / DANE2 records 226ms

Service / Owner	Type	Cert association
SMTP _25._tcp.eu-esec-01.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…
SMTP _25._tcp.eu-esec-02.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…

🔐 DNSSEC294ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083001
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

146ms

A

114ms

MX

153ms

AAAA

95ms

TXT

380ms

CAA

142ms

HTTPS

161ms

TLSA

226ms

SOA

0ms

MTA-STS

180ms

DNSSEC

294ms

SRV

171ms

Total

1799ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 16:33:15	1799ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-28 10:58:25	928ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-26 14:07:29	595ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-20 19:23:04	1078ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-19 18:01:11	8198ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-21 05:22:12	1185ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 13:44:17	2359ms	2 NS 1 A 2 MX	🔒 Secure	View