cn3.dk DNS records

🖥️ Nameservers4 records 263ms

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 Records2 records 244ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
141.193.213.10	3600s	—	AS209242	Cloudflare London, LLC	141.193.213.0/24	🇺🇸 United States	—
141.193.213.11	3600s	—	AS209242	Cloudflare London, LLC	141.193.213.0/24	🇺🇸 United States	—

📧 MX Records1 records 263ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cn3-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca09::2 2a01:111:f403:ca09::3 2a01:111:f403:ca09::8 52.101.68.32 52.101.73.12 52.101.73.2 52.101.73.28	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	94.231.103.54

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 255ms

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

📝 TXT Records3 records 574ms

TXT Record
apple-domain-verification=fPrZSOQmoQ0XFDK8
dropbox-domain-verification=8nu5ml0r6zqs
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net -all

✉️ SPF

Policy	Record (cn3.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net -all

📨 DMARC

Policy	Record (_dmarc.cn3.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@cn3.dk; ruf=mailto:dmarc@cn3.dk; adkim=s; aspf=s;

📬 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)

🔐 DNSSEC532ms

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

🏷️ SOA233ms

Field	Value
Serial	2026042410
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

263ms

A

244ms

MX

263ms

AAAA

296ms

TXT

574ms

CAA

219ms

HTTPS

213ms

TLSA

332ms

SOA

233ms

MTA-STS

263ms

DNSSEC

532ms

SRV

255ms

Total

1838ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-27 12:18:28	1838ms	4 NS 2 A 1 MX	🔒 Secure	View
2026-06-20 10:37:46	710ms	4 NS 2 A 1 MX	🔒 Secure	View
2026-06-16 22:46:14	65535ms	4 NS 2 A 1 MX	🔒 Secure	View
2026-06-16 21:52:55	1952ms	4 NS 2 A 1 MX	🔒 Secure	View
2026-06-16 21:31:23	865ms	4 NS 2 A 1 MX	🔒 Secure	View