optimus.dk DNS records

🖥️ Nameservers2 records 256ms

Nameserver	IP addresses	PTR	ASN / ISP
elma.ns.cloudflare.com	108.162.192.154 172.64.32.154 173.245.58.154 2606:4700:50::adf5:3a9a 2803:f800:50::6ca2:c09a 2a06:98c1:50::ac40:209a	elma.ns.cloudflare.com elma.ns.cloudflare.com elma.ns.cloudflare.com elma.ns.cloudflare.com elma.ns.cloudflare.com elma.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
henry.ns.cloudflare.com	108.162.193.176 172.64.33.176 173.245.59.176 2606:4700:58::adf5:3bb0 2803:f800:50::6ca2:c1b0 2a06:98c1:50::ac40:21b0	henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 258ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.77.197	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.211.110	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 242ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	optimus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::2 2a01:111:f403:ca04::e 2a01:111:f403:ca09::9 52.101.68.32 52.101.68.5 52.101.73.16 52.101.73.19	mail-db7pr03cu00401.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr04cu00803.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	172.67.211.110

🔷 AAAA Records (IPv6)2 records 230ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:4dc5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:d36e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 255ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.77.197,172.67.211.110 ech=AEX+DQBBqAAgACD6Xb3Mu/IlRjTGmxfGhqrtPavmV+zrQmIJsMECv4uEagAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4dc5,2606:4700:3037::ac43:d36e

🔌 SRV Records1 records 295ms

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

📝 TXT Records6 records 634ms

TXT Record
2mckichjvl0gbjmv21mldueuha
8994ig616lmvp8nvftvsf0rtn6
ca3-323a4078ce79495fa5d51518616945bf
ca3-d12a24d2593e4534a2ef289531f5b8fb
MS=ms29849689
v=spf1 include:spf.protection.outlook.com ip4:80.208.35.5 include:spf.eu.exclaimer.net -all

✉️ SPF

Policy	Record (optimus.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:80.208.35.5 include:spf.eu.exclaimer.net -all

📨 DMARC

Policy	Record (_dmarc.optimus.dk)
p=reject	v=DMARC1; p=reject; pct=100; rua=mailto:IT-Admin@optimus.dk

📬 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)

🔐 DNSSEC419ms

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

🏷️ SOA0ms

Field	Value
Serial	2411765040
Primary NS (MNAME)	elma.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

256ms

A

258ms

MX

242ms

AAAA

230ms

TXT

634ms

CAA

246ms

HTTPS

255ms

TLSA

354ms

SOA

0ms

MTA-STS

312ms

DNSSEC

419ms

SRV

295ms

Total

6655ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-10 17:57:29	6655ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-17 12:44:26	1479ms	2 NS 2 A 1 MX	❓ Unknown	View
2026-07-13 15:25:32	1398ms	2 NS 2 A 1 MX	❓ Unknown	View
2026-07-10 18:52:44	10859ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-02 10:10:26	2592ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-25 14:38:59	999ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-20 17:29:43	2467ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 04:53:18	2950ms	2 NS 2 A 1 MX	🔓 Insecure	View