omu.dk

Records from scan: 2026-10-11 04:22:15 · 554ms total · last checked 2026-10-17 13:37 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

omu.dk is a .dk domain served by 2 nameservers (brynne.ns.cloudflare.com, julian.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.10.66 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.omu.dk. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 25ms

Nameserver	IP addresses	PTR	ASN / ISP
brynne.ns.cloudflare.com	108.162.194.65 162.159.38.65 172.64.34.65 2606:4700:50::a29f:2641 2803:f800:50::6ca2:c241 2a06:98c1:50::ac40:2241	brynne.ns.cloudflare.com brynne.ns.cloudflare.com brynne.ns.cloudflare.com brynne.ns.cloudflare.com brynne.ns.cloudflare.com brynne.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
julian.ns.cloudflare.com	108.162.195.94 162.159.44.94 172.64.35.94 2606:4700:58::a29f:2c5e 2803:f800:50::6ca2:c35e 2a06:98c1:50::ac40:235e	julian.ns.cloudflare.com julian.ns.cloudflare.com julian.ns.cloudflare.com julian.ns.cloudflare.com julian.ns.cloudflare.com julian.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.10.66	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.131.65	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	mail.omu.dk	192.250.229.80	s3145.fra1.stableserver.net	AS209341 WHG Hosting Services Ltd

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	mail.omu.dk → 192.250.229.80
🔶 Autoconfig	104.21.10.66

🔷 AAAA Records (IPv6)#

2 records 37ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:a42	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:8341	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 58ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.10.66,172.67.131.65 ech=AEX+DQBBWgAgACDiop8FX0Q3jWk7fiflUvmXuHDxtqoS8FooReMseJE3WwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:a42,2606:4700:3035::ac43:8341

📝 TXT Records#

2 records 217ms

TXT Record
v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc@omu.dk; fo=1; adkim=s; aspf=s;
v=spf1 +mx +a +ip4:192.250.229.80 +include:spf.mysecurecloudhost.com ~all

✉️ SPF#

Policy	Record (omu.dk)
~all (soft fail)	v=spf1 +mx +a +ip4:192.250.229.80 +include:spf.mysecurecloudhost.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#

checked 2026-10-11 04:22:15

www	104.21.10.66 172.67.131.65 2606:4700:3033::6815:a42 2606:4700:3035::ac43:8341 (AS13335) (address records, no CNAME)
www vs bare domain	Same network omu.dk: 104.21.10.66 172.67.131.65 2606:4700:3033::6815:a42 2606:4700:3035::ac43:8341 (AS13335) www.omu.dk: 104.21.10.66 172.67.131.65 2606:4700:3033::6815:a42 2606:4700:3035::ac43:8341 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	RSA · ~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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

82ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2417128581
Primary NS (MNAME)	brynne.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

25ms

46ms

38ms

AAAA

37ms

TXT

217ms

CAA

49ms

HTTPS

58ms

TLSA

72ms

SOA

34ms

MTA-STS

57ms

DNSSEC

82ms

SRV

78ms

Total

554ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 04:22:15 shown	554ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 23:08:06	677ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-30 11:43:43	1122ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-14 09:24:16	979ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-30 23:18:06	802ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 07:06:48	904ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 14:05:09	4848ms	2 NS 2 A 1 MX	🔓 Insecure