cekra.dk DNS records

🖥️ Nameservers2 records 40ms

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 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
66.241.124.35	600s	ip-66-241-124-35.shared.customer.flyio.net	AS40509	Fly.io, Inc.	66.241.124.0/23	🇺🇸 United States	—

📧 MX Records1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cekra-dk.mail.protection.outlook.com	2a01:111:f403:c967:: 2a01:111:f403:c967::2 2a01:111:f403:c967::4 2a01:111:f403:c967::6 52.101.209.2 52.101.209.4 52.101.209.6 52.101.209.74	mail-cpcp307cu00400.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpcp307cu00402.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 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a09:8280:1::117:fbb5:0	600s	ipv6.customer.flyio.net	AS40509	Fly.io, Inc.	2a09:8280:1:0:0:0:0:0/48	🇺🇸 United States	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 156ms

TXT Record
MS=ms96212164
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (cekra.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)

🔐 DNSSEC72ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081201
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

40ms

A

34ms

MX

46ms

AAAA

39ms

TXT

156ms

CAA

48ms

HTTPS

38ms

TLSA

309ms

SOA

0ms

MTA-STS

73ms

DNSSEC

72ms

SRV

64ms

Total

834ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 04:22:58	834ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 10:43:37	1299ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 19:01:35	5708ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 23:31:49	1206ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 22:19:35	17382ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 00:54:49	1002ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 03:43:08	1182ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 21:09:05	44645ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:09:42	411ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:04:11	1806ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 20:00:07	1748ms	2 NS 1 A 1 MX	🔒 Secure	View