opusb2b.dk

📜 Historical scan 2026-08-06 04:32:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

opusb2b.dk is a .dk domain served by 2 nameservers (arvind.ns.cloudflare.com, ollie.ns.cloudflare.com). It was registered on 17 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by opusb2b-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 98ms

Nameserver	IP addresses	PTR	ASN / ISP
arvind.ns.cloudflare.com	108.162.195.227 162.159.44.227 172.64.35.227 2606:4700:58::a29f:2ce3 2803:f800:50::6ca2:c3e3 2a06:98c1:50::ac40:23e3	arvind.ns.cloudflare.com arvind.ns.cloudflare.com arvind.ns.cloudflare.com arvind.ns.cloudflare.com arvind.ns.cloudflare.com arvind.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ollie.ns.cloudflare.com	108.162.194.71 162.159.38.71 172.64.34.71 2606:4700:50::a29f:2647 2803:f800:50::6ca2:c247 2a06:98c1:50::ac40:2247	ollie.ns.cloudflare.com ollie.ns.cloudflare.com ollie.ns.cloudflare.com ollie.ns.cloudflare.com ollie.ns.cloudflare.com ollie.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	opusb2b-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::d 2a01:111:f403:ca04::f 2a01:111:f403:ca09::7 52.101.73.15 52.101.73.2 52.101.73.28 52.101.73.6	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 140ms

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

📝 TXT Records#

2 records 344ms

TXT Record
MS=ms57666787
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (opusb2b.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 06:24:41

www	NXDOMAIN
www vs bare domain	Neither resolves opusb2b.dk: no address www.opusb2b.dk: no address
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

148ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2411057768
Primary NS (MNAME)	arvind.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 07:01:26

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-05-17
Expires	2027-05-16 (202d)

📋 WHOIS#

⏱️ Lookup Timing#

98ms

87ms

80ms

AAAA

89ms

TXT

344ms

CAA

84ms

HTTPS

76ms

TLSA

626ms

SOA

0ms

MTA-STS

109ms

DNSSEC

148ms

SRV

140ms

Total

2135ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 06:24:41	1122ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-30 06:36:28	1723ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-26 15:54:24	883ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-26 02:55:13	1513ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-12 04:37:44	2129ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-06 04:32:51 shown	2135ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-02 10:16:34	1861ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-18 00:24:33	818ms	2 NS 0 A 1 MX	🔓 Insecure