cntech.dk DNS records

🖥️ Nameservers4 records 47ms

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 Records1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.202.211.1	600s	—	AS209242	Cloudflare London, LLC	198.202.211.0/24	🇺🇸 United States	—

📧 MX Records1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	cntech-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca09::1 2a01:111:f403:ca09::a 2a01:111:f403:ca09::b 52.101.68.18 52.101.68.5 52.101.73.19 52.101.73.28	mail-du2pr03cu00102.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 219ms

TXT Record
MS=ms35311160
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (cntech.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.cntech.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100

📬 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.cntech.dk	-DIX416t5EYq4hYEM1waZ7t9C7KgpO4aVjJskTLuiHw

🔗 TLSA / DANE

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

🔐 DNSSEC93ms

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

🏷️ SOA0ms

Field	Value
Serial	2026011000
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

47ms

A

36ms

MX

35ms

AAAA

42ms

TXT

219ms

CAA

48ms

HTTPS

61ms

TLSA

1101ms

SOA

0ms

MTA-STS

44ms

DNSSEC

93ms

SRV

68ms

Total

1789ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 10:54:27	1789ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 13:30:10	2266ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 19:13:21	2309ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:54:48	65535ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:42:29	5730ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:30:50	1774ms	4 NS 1 A 1 MX	🔒 Secure	View