c-co.dk DNS records

🖥️ Nameservers2 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ali.ns.cloudflare.com	108.162.192.59 172.64.32.59 173.245.58.59 2606:4700:50::adf5:3a3b 2803:f800:50::6ca2:c03b 2a06:98c1:50::ac40:203b	ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com ali.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
terin.ns.cloudflare.com	108.162.193.236 172.64.33.236 173.245.59.236 2606:4700:58::adf5:3bec 2803:f800:50::6ca2:c1ec 2a06:98c1:50::ac40:21ec	terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com terin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 62ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.71.171	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.171.19	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	cco-dk0c.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::2 2a01:111:f403:ca09::1 2a01:111:f403:ca09::20 52.101.68.10 52.101.68.32 52.101.68.8 52.101.73.8	mail-dbapr03cu00100.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am0pr04cu00500.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	172.67.171.19

🔷 AAAA Records (IPv6)2 records 53ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:ab13	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::6815:47ab	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 56ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.71.171,172.67.171.19 ech=AEX+DQBBfwAgACA47+Qu+1wObnqFo6Z96p4veA7nvt21jpauabCzfKdMLAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:ab13,2606:4700:3032::6815:47ab

🔌 SRV Records1 records 87ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 214ms

TXT Record
MS=ms39998074
v=spf1 include:spf.protection.outlook.com ip4:5.134.9.155 ip4:5.134.12.217 ~all

✉️ SPF

Policy	Record (c-co.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ip4:5.134.9.155 ip4:5.134.12.217 ~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)

🔐 DNSSEC2071ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2410970474
Primary NS (MNAME)	ali.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

47ms

A

62ms

MX

55ms

AAAA

53ms

TXT

214ms

CAA

50ms

HTTPS

56ms

TLSA

192ms

SOA

0ms

MTA-STS

82ms

DNSSEC

2071ms

SRV

87ms

Total

2763ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 20:46:29	2763ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-27 01:56:37	10067ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-31 18:16:27	1683ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-24 01:55:59	1369ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-25 08:46:04	5692ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-21 01:12:26	1171ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 18:50:10	912ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 18:40:55	2692ms	2 NS 2 A 1 MX	🔓 Insecure	View