cengo.dk DNS records

🖥️ Nameservers2 records 75ms

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 76ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.151	3600s	webcluster1.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 99ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cengo-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::e 2a01:111:f403:ca09::1 2a01:111:f403:ca09::2 52.101.103.137 52.101.68.0 52.101.68.16 52.101.73.15	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am9pr04cu00107.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

🔷 AAAA Records (IPv6)1 records 72ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:106:be:ec9d:b031:575c	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 302ms

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

✉️ SPF

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

📨 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)

🔐 DNSSEC217ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082501
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

75ms

A

76ms

MX

99ms

AAAA

72ms

TXT

302ms

CAA

93ms

HTTPS

82ms

TLSA

859ms

SOA

0ms

MTA-STS

119ms

DNSSEC

217ms

SRV

116ms

Total

1897ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 16:20:11	1897ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 18:48:52	1780ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 11:25:32	1261ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 22:13:39	2274ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 11:03:52	744ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-29 23:46:40	4161ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 16:23:17	956ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 08:22:31	810ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:22:01	2056ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:11:07	471ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:10:03	58981ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:00:46	872ms	2 NS 1 A 1 MX	🔒 Secure	View