composing.dk DNS records

🖥️ Nameservers2 records 34ms

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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.149	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	composing-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca09::7 2a01:111:f403:ca09::d 2a01:111:f403:ca09::e 52.101.68.0 52.101.68.15 52.101.68.29 52.101.68.36	mail-db7pr03cu00507.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db5pr02cu00104.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)1 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:ab:58e0:2c27:369f	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

🔌 SRV Records1 records 67ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 220ms

TXT Record
MS=ms98217428
v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all

✉️ SPF

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

🔐 DNSSEC87ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081004
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

34ms

A

46ms

MX

41ms

AAAA

42ms

TXT

220ms

CAA

49ms

HTTPS

36ms

TLSA

752ms

SOA

0ms

MTA-STS

62ms

DNSSEC

87ms

SRV

67ms

Total

2014ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 18:28:13	822ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 17:00:20	2014ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-08 02:28:44	1246ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-05 19:52:13	9019ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-01 09:19:50	705ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 09:49:02	2062ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 05:30:09	1050ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 20:09:36	2427ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:56:00	1589ms	2 NS 1 A 1 MX	🔒 Secure	View