nc.dk

📜 Historical scan 2026-09-24 04:13:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nc.dk is a .dk domain served by 2 nameservers (elsa.ns.cloudflare.com, roan.ns.cloudflare.com). It was registered on 14 April 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.26.0.137 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by nc-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
elsa.ns.cloudflare.com	108.162.192.111 172.64.32.111 173.245.58.111 2606:4700:50::adf5:3a6f 2803:f800:50::6ca2:c06f 2a06:98c1:50::ac40:206f	elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
roan.ns.cloudflare.com	108.162.193.226 172.64.33.226 173.245.59.226 2606:4700:58::adf5:3be2 2803:f800:50::6ca2:c1e2 2a06:98c1:50::ac40:21e2	roan.ns.cloudflare.com roan.ns.cloudflare.com roan.ns.cloudflare.com roan.ns.cloudflare.com roan.ns.cloudflare.com roan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

3 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.26.0.137	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
104.26.1.137	300s	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
172.67.69.229	300s	—	AS13335	Cloudflare, Inc.	172.67.64.0/18	—	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	nc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::20 2a01:111:f403:ca09::22 2a01:111:f403:ca21::10 52.101.103.36 52.101.209.153 52.101.209.31 52.101.68.39	mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-matpr05cu00100.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-db7pr03cu00607.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

3 records 54ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:20::681a:189	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::681a:89	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:20::ac43:45e5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records#

1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.26.0.137,104.26.1.137,172.67.69.229 ipv6hint=2606:4700:20::681a:89,2606:4700:20::681a:189,2606:4700:20::ac43:45e5

🔌 SRV Records#

1 records 64ms

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

📝 TXT Records#

14 records 180ms

TXT Record
1JLDnE6qHOEzvg8GLTLOCwM6hKhFheQhcPtB44ry+87xFC9IFdSSNu479imo9zLs9XiikoYIMWvI35UwXsODxw==
5cWGujLRq8EJYwGGPls/Ef0jMIt9DKJv/6nF/MzgW7nGZC7IeDpMy1jVOuGp/pUQISoV3WPOf8/8VXmqd10Z8Q==
aekRzCpU2WJkjdTr12Sx
apple-domain-verification=mp-XQLsOe2-hOGWacTFksDNEeMIOfsSu2-kwffZWxYM
ciscocidomainverification=7c0308d01e739231c62db8c4cc90012cf7a331055e57aa7fbca7f39ff699cccd
facebook-domain-verification=61hn5boq89ryejkoqffozu2mnt610y
globalsign-domain-verification=9C5tPdCtxYmbV5wKtGhrWS3IFJ9vLEiRRxYcJ-l7rn
globalsign-domain-verification=iifcBRJkqBwbOwogwKbvWnG-2BLl4l-ALYh48PmvAg
globalsign-domain-verification=r9w-srgAPJcuHc61g4HjTaCa-aLqcW_Cd31dJQmDe_
globalsign-domain-verification=TlurNFaDP37WkxMVaJqjUXRO4rjQHaO0FYOEgCJIi8
globalsign-domain-verification=vpHwqqC7QWdXdU5suPaKmWAhqmip2Z5WuCFwVI62-3
google-site-verification=sujOiUZptEvM-dFTkwy17UX_PlbpzlVzP3PZP-O32Zc
plFHST/jBDwq1iUhPkCDWlF45rO+N7XX4uITjdygPx+mTty+UPGTeQakSjLk41Ywzyh20+mn3cGbbOyAJez3hg==
v=spf1 include:spf.protection.outlook.com include:musvc.com include:spf.zitcom.dk include:customerspf.sitecore.net include:_spf.vaimo.net ip4:195.81.252.0/23 ip4:185.59.148.0/22 ip4:194.182.254.0/24 ip4:194.255.39.34 -all

✉️ SPF#

Policy	Record (nc.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:musvc.com include:spf.zitcom.dk include:customerspf.sitecore.net include:_spf.vaimo.net ip4:195.81.252.0/23 ip4:185.59.148.0/22 ip4:194.182.254.0/24 ip4:194.255.39.34 -all

📨 DMARC#

Policy	Record (_dmarc.nc.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:633c00dc7e5f7@dmarc.centerasecurity.com; ruf=mailto:dmarcforensics@nc.dk; fo=1;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

13 records 41ms

Flags	Tag	Value
0	iodef	mailto:report-abuse@globalsign.com
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
0	issue	globalsign.com
0	issue	letsencrypt.org
0	issue	pki.goog; cansignhttpexchanges=yes
0	issue	ssl.com
0	issuewild	comodoca.com
0	issuewild	digicert.com; cansignhttpexchanges=yes
0	issuewild	globalsign.com
0	issuewild	letsencrypt.org
0	issuewild	pki.goog; cansignhttpexchanges=yes
0	issuewild	ssl.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 20:22:48

www	104.26.0.137 104.26.1.137 172.67.69.229 2606:4700:20::681a:189 2606:4700:20::681a:89 2606:4700:20::ac43:45e5 (AS13335) (address records, no CNAME)
www vs bare domain	Same network nc.dk: 104.26.0.137 104.26.1.137 172.67.69.229 2606:4700:20::681a:189 (AS13335) www.nc.dk: 104.26.0.137 104.26.1.137 172.67.69.229 2606:4700:20::681a:189 (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-nc-dk._domainkey.ncgdk.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 9/10 · policy: -all

warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.nc.dk	1e3km7KpzlZQJ9wOsX1ck3dYQU3YbXBYUXK3Ers5-lo
TXT	_acme-challenge.nc.dk	AN7B6hRZO0kW5eepNWMasS-YV3rbilMqAp71z04OZqI
TXT	_acme-challenge.nc.dk	S7M_V4J54jg0bw6mX0g8wYDvv-z-tKux-2p66s0YjRg
TXT	_acme-challenge.nc.dk	lLBUydUkNGpGMuc6S2L-wERC7fonMOIdQY90eA3vd-w

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

109ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415685868
Primary NS (MNAME)	elsa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 12:52:53

Field	Value
Registrar	Eurodns S.A
Registered	1997-04-14
Expires	2027-06-30 (254d)

📋 WHOIS#

⏱️ Lookup Timing#

31ms

40ms

43ms

AAAA

54ms

TXT

180ms

CAA

41ms

HTTPS

34ms

TLSA

280ms

SOA

0ms

MTA-STS

60ms

DNSSEC

109ms

SRV

64ms

Total

1328ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-06 12:20:08	1458ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-30 10:10:53	1123ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-26 05:02:09	2911ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-25 04:45:36	1875ms	2 NS 3 A 1 MX	🔓 Insecure
2026-09-24 04:13:45 shown	1328ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-12 14:39:51	6364ms	2 NS 3 A 1 MX	🔓 Insecure
2026-08-04 13:37:14	2253ms	2 NS 3 A 1 MX	🔓 Insecure
2026-07-25 17:46:29	1951ms	2 NS 3 A 1 MX	🔓 Insecure
2026-07-17 12:53:42	1549ms	2 NS 3 A 1 MX	🔓 Insecure
2026-07-03 11:17:34	1278ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-23 18:48:28	1336ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-23 00:01:54	920ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 01:13:32	5003ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-19 21:20:45	4160ms	2 NS 3 A 1 MX	🔓 Insecure
2026-06-17 17:54:21	4177ms	2 NS 3 A 1 MX	🔓 Insecure