cosolutions.dk DNS records

🖥️ Nameservers2 records 50ms

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 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.130	3600s	webcluster1.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cosolutions-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::8 2a01:111:f403:ca04::a 2a01:111:f403:ca04::c 52.101.181.153 52.101.68.0 52.101.73.22 52.101.73.6	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 52.98.149.136
🔶 Autoconfig	46.30.215.130

🔷 AAAA Records (IPv6)1 records 47ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:106:17:1d6e:7a31:6c7c	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 Records2 records 202ms

TXT Record
MS=ms86287507
v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all

✉️ SPF

Policy	Record (cosolutions.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)

🔐 DNSSEC82ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081905
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

50ms

A

44ms

MX

34ms

AAAA

47ms

TXT

202ms

CAA

43ms

HTTPS

40ms

TLSA

761ms

SOA

0ms

MTA-STS

57ms

DNSSEC

82ms

SRV

71ms

Total

1370ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 14:34:20	1370ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 01:25:26	1450ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 14:27:13	2874ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 11:05:50	2137ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 10:51:39	5391ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 01:58:36	821ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 09:57:14	1285ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 08:20:27	894ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 01:44:52	1166ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 23:38:26	1175ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 22:56:01	2354ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 22:31:37	742ms	2 NS 1 A 1 MX	🔒 Secure	View