corem.dk DNS records

🖥️ Nameservers2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
dora.ns.cloudflare.com	108.162.192.108 172.64.32.108 173.245.58.108 2606:4700:50::adf5:3a6c 2803:f800:50::6ca2:c06c 2a06:98c1:50::ac40:206c	dora.ns.cloudflare.com dora.ns.cloudflare.com dora.ns.cloudflare.com dora.ns.cloudflare.com dora.ns.cloudflare.com dora.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
justin.ns.cloudflare.com	108.162.193.187 172.64.33.187 173.245.59.187 2606:4700:58::adf5:3bbb 2803:f800:50::6ca2:c1bb 2a06:98c1:50::ac40:21bb	justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.208.37.81	60s	188.208.37.81.static.hosted.by.combell-ops.net	AS34762	Combell NV	188.208.36.0/23	🇧🇪 Belgium	—

📧 MX Records1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	corem-dk.mail.protection.outlook.com	52.101.68.16 52.101.68.32 52.101.68.5 52.101.73.12	mail-db4pr02cu00400.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.154.136
🔶 Autoconfig	corem.dk → 188.208.37.81

🔷 AAAA Records (IPv6)1 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a00:1c98:1000:12c3:0:3:e295:7f00	60s	—	AS34762	Combell NV	2a00:1c98:0:0:0:0:0:0/32	🇧🇪 Belgium	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 191ms

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

📝 TXT Records3 records 546ms

TXT Record
ca3-0b5508aeee5d4d35b7b703a1eacbdc94
MS=ms42081161
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.corem.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.corem.dk	corem.dk.kinstavalidation.app
TXT	corem.dk.kinstavalidation.app	HTOnkR0pU4wzvZHDWrhpnXWhrrT3Sm4Klio3nVhF8Vs
TXT	corem.dk.kinstavalidation.app	I_UkwT2LJWEYGJKdmr8S16n6ZXBAzB6vXP2CUgcjxJs

🔗 TLSA / DANE

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

🔐 DNSSEC124ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'corem.dk/A/IN': 127.0.0.1#53

🏷️ SOA0ms

Field	Value
Serial	2407437717
Primary NS (MNAME)	dora.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

40ms

A

43ms

MX

44ms

AAAA

39ms

TXT

546ms

CAA

41ms

HTTPS

45ms

TLSA

255ms

SOA

0ms

MTA-STS

48ms

DNSSEC

124ms

SRV

191ms

Total

1111ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:50:01	1608ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-19 16:25:39	3847ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-31 22:41:38	9043ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-24 19:26:26	1934ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 14:16:22	1111ms	2 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-19 13:54:42	1216ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 22:26:00	624ms	2 NS 1 A 1 MX	🔓 Insecure	View