optiren.dk

📜 Historical scan 2026-08-19 19:47:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optiren.dk is a .dk domain served by 2 nameservers (alfred.ns.cloudflare.com, isla.ns.cloudflare.com). It was registered on 25 July 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.30 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by optiren-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 47ms

Nameserver	IP addresses	PTR	ASN / ISP
alfred.ns.cloudflare.com	108.162.195.131 162.159.44.131 172.64.35.131 2606:4700:58::a29f:2c83 2803:f800:50::6ca2:c383 2a06:98c1:50::ac40:2383	alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
isla.ns.cloudflare.com	108.162.192.119 172.64.32.119 173.245.58.119 2606:4700:50::adf5:3a77 2803:f800:50::6ca2:c077 2a06:98c1:50::ac40:2077	isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com isla.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 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.30	300s	vm1330.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	optiren-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09::4 2a01:111:f403:ca09::7 2a01:111:f403:ca09::f 52.101.68.12 52.101.68.36 52.101.73.11 52.101.73.22	mail-db4pr02cu00204.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am7pr05cu00106.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)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 96ms

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

📝 TXT Records#

1 records 197ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com IP4:193.8.36.0/22 ~all

✉️ SPF#

Policy	Record (optiren.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:web.shared.mysmtp.com IP4:193.8.36.0/22 ~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 2026-10-10 21:12:02

www	185.21.40.30 (AS48854) (address records, no CNAME)
www vs bare domain	Same network optiren.dk: 185.21.40.30 (AS48854) www.optiren.dk: 185.21.40.30 (AS48854)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-optiren-dk._domainkey.dw1optirendk.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: 5/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.optiren.dk	nE3Ck_j-9MGPyySCqBKzwZWq8b2txgd94GjF2lg4yKE
TXT	_acme-challenge.optiren.dk	wt7gO7UbFkRRLJy4SZBGcuDTt0Qs9aonrxVGC7TZfK8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

80ms

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	2412567731
Primary NS (MNAME)	alfred.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 02:23:39

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2009-07-25
Expires	2027-07-31 (286d)

📋 WHOIS#

⏱️ Lookup Timing#

47ms

52ms

62ms

AAAA

61ms

TXT

197ms

CAA

49ms

HTTPS

55ms

TLSA

654ms

SOA

0ms

MTA-STS

83ms

DNSSEC

80ms

SRV

96ms

Total

1948ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 06:48:17	1029ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-30 12:32:31	1095ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-27 09:23:37	1012ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-25 11:15:47	1032ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-10 13:35:54	1441ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-30 12:14:15	2484ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-26 19:02:26	1010ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-26 17:28:32	913ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-22 21:51:51	4800ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-19 19:47:25 shown	1948ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-28 03:12:33	10842ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 19:39:35	961ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 10:30:29	2547ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 05:04:00	1283ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 10:23:33	757ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 20:05:26	3208ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 11:12:31	1175ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 11:43:20	1130ms	2 NS 1 A 1 MX	🔓 Insecure