net-op.dk

📜 Historical scan 2026-09-18 17:41:38 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

net-op.dk is a .dk domain served by 2 nameservers (connie.ns.cloudflare.com, jose.ns.cloudflare.com). It was registered on 24 March 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.112 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by netop-dk0i.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 37ms

Nameserver	IP addresses	PTR	ASN / ISP
connie.ns.cloudflare.com	108.162.192.247 172.64.32.247 173.245.58.247 2606:4700:50::adf5:3af7 2803:f800:50::6ca2:c0f7 2a06:98c1:50::ac40:20f7	connie.ns.cloudflare.com connie.ns.cloudflare.com connie.ns.cloudflare.com connie.ns.cloudflare.com connie.ns.cloudflare.com connie.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jose.ns.cloudflare.com	108.162.195.88 162.159.44.88 172.64.35.88 2606:4700:58::a29f:2c58 2803:f800:50::6ca2:c358 2a06:98c1:50::ac40:2358	jose.ns.cloudflare.com jose.ns.cloudflare.com jose.ns.cloudflare.com jose.ns.cloudflare.com jose.ns.cloudflare.com jose.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.112	300s	prolinux102.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	netop-dk0i.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca09::a 2a01:111:f403:ca21::8 2a01:111:f403:ca48::a 52.101.209.153 52.101.68.18 52.101.68.36 52.101.91.21	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-matpr05cu00105.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 → 52.98.149.152
🔶 Autoconfig	185.21.42.112

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 62ms

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

📝 TXT Records#

2 records 175ms

TXT Record
MS=ms18209457
v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:spf.curanet.dk include:ipmail.dk -all

✉️ SPF#

Policy	Record (net-op.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:spf.curanet.dk include:ipmail.dk -all

📨 DMARC#

Policy	Record (_dmarc.net-op.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 03:03:06

www	185.21.42.112 (AS48854) (address records, no CNAME)
www vs bare domain	Same network net-op.dk: 185.21.42.112 (AS48854) www.net-op.dk: 185.21.42.112 (AS48854)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 7/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.net-op.dk	EXCNPR-syUGiI-otr1wqXkjHsW6VUQoEpPh3ewVY-fE
TXT	_acme-challenge.net-op.dk	fPya_ixBPYcrHH7OpIYouDuYSSIxtAWpeAA0T-25c2M

🔗 TLSA / DANE#

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

🔐 DNSSEC#

115ms

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	2415106741
Primary NS (MNAME)	connie.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-09-05 16:37:47

Field	Value
Registrar	CURANET A/S
Registered	1998-03-24
Expires	2027-03-31 (163d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

33ms

38ms

AAAA

39ms

TXT

175ms

CAA

34ms

HTTPS

42ms

TLSA

238ms

SOA

0ms

MTA-STS

56ms

DNSSEC

115ms

SRV

62ms

Total

2808ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 00:01:15	1283ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-26 08:02:50	1472ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-25 07:40:10	1324ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-18 17:41:38 shown	2808ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-16 07:01:15	1212ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-09 04:30:53	2031ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-05 16:31:37	984ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-01 15:02:15	1402ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 14:59:58	1170ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-20 16:52:02	9643ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 19:01:54	1367ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 07:45:00	1167ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 07:05:10	1227ms	2 NS 1 A 1 MX	🔓 Insecure