kerubo.dk DNS records

🖥️ Nameservers2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
damien.ns.cloudflare.com	108.162.195.168 162.159.44.168 172.64.35.168 2606:4700:58::a29f:2ca8 2803:f800:50::6ca2:c3a8 2a06:98c1:50::ac40:23a8	damien.ns.cloudflare.com damien.ns.cloudflare.com damien.ns.cloudflare.com damien.ns.cloudflare.com damien.ns.cloudflare.com damien.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
pola.ns.cloudflare.com	108.162.192.214 172.64.32.214 173.245.58.214 2606:4700:50::adf5:3ad6 2803:f800:50::6ca2:c0d6 2a06:98c1:50::ac40:20d6	pola.ns.cloudflare.com pola.ns.cloudflare.com pola.ns.cloudflare.com pola.ns.cloudflare.com pola.ns.cloudflare.com pola.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.38.228	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.140.62	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	kerubo-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca09::2 2a01:111:f403:ca09::4 2a01:111:f403:ca09::d 52.101.103.140 52.101.73.11 52.101.73.2 52.101.73.30	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am7pr05cu00306.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 → 40.104.116.56

🔷 AAAA Records (IPv6)2 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:26e4	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:8c3e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 35ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.38.228,172.67.140.62 ech=AEX+DQBBXAAgACCXDKHSXgUZp5BQiesSpmZ3BJPpbc3rZvi9sQSnAeqiEAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:26e4,2606:4700:3035::ac43:8c3e

🔌 SRV Records1 records 97ms

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

📝 TXT Records3 records 200ms

TXT Record
facebook-domain-verification=yhjzd0fjp97vjbyrrd5iyxkd56leav
google-site-verification=RGYIXszkxCvgk5JwvMSRdomYfuKFnNFImuDTSwm7whE
v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:spf.gecko.dk -all

✉️ SPF

Policy	Record (kerubo.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:spf.gecko.dk -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

🔗 TLSA / DANE

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

🔐 DNSSEC83ms

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

🏷️ SOA0ms

Field	Value
Serial	2409968336
Primary NS (MNAME)	damien.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

38ms

A

41ms

MX

50ms

AAAA

43ms

TXT

200ms

CAA

71ms

HTTPS

35ms

TLSA

607ms

SOA

0ms

MTA-STS

83ms

DNSSEC

83ms

SRV

97ms

Total

1304ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 21:15:33	1304ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-19 22:37:00	3150ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-15 15:42:26	1423ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-23 05:37:08	3276ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-21 15:55:19	976ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-21 10:46:49	703ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 14:45:18	3950ms	2 NS 2 A 1 MX	🔓 Insecure	View