coresex.dk DNS records

🖥️ Nameservers2 records 29ms

Nameserver	IP addresses	PTR	ASN / ISP
desiree.ns.cloudflare.com	108.162.194.13 162.159.38.13 172.64.34.13 2606:4700:50::a29f:260d 2803:f800:50::6ca2:c20d 2a06:98c1:50::ac40:220d	desiree.ns.cloudflare.com desiree.ns.cloudflare.com desiree.ns.cloudflare.com desiree.ns.cloudflare.com desiree.ns.cloudflare.com desiree.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
yadiel.ns.cloudflare.com	108.162.195.4 162.159.44.4 172.64.35.4 2606:4700:58::a29f:2c04 2803:f800:50::6ca2:c304 2a06:98c1:50::ac40:2304	yadiel.ns.cloudflare.com yadiel.ns.cloudflare.com yadiel.ns.cloudflare.com yadiel.ns.cloudflare.com yadiel.ns.cloudflare.com yadiel.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
83.88.251.84	300s	83-88-251-84-cable.dk.customer.tdc.net	AS3292	TDC Holding A/S	83.88.192.0/18	🇩🇰 Denmark	Glostrup Municipality

📧 MX Records1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
40	300s	pmg.domingo.dk	2a01:4f8:c012:9adf::1 49.13.214.145	pmg.domingo.dk pmg.domingo.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	coresex.dk → 83.88.251.84
🔶 Autoconfig	coresex.dk → 83.88.251.84

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 178ms

TXT Record
v=spf1 include:_spf.0tx.dk -all

✉️ SPF

Policy	Record (coresex.dk)
-all (hard fail)	v=spf1 include:_spf.0tx.dk -all

📨 DMARC

Policy	Record (_dmarc.coresex.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:88b0719a1a4b4a169918b72613bdbbc0@dmarc-reports.cloudflare.net

📬 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
TXT	_acme-challenge.coresex.dk	4-iP5oxnwM41sBmPNCqGXtZJhZU0WS-h4Buq7BLUKBk
TXT	_acme-challenge.coresex.dk	y8aakSV-T3FqjgatcTqZ3CE2L4CzV3oI_bHSmzLaU2c

🔗 TLSA / DANE

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

🔐 DNSSEC107ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2413390091
Primary NS (MNAME)	desiree.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

29ms

A

44ms

MX

38ms

AAAA

38ms

TXT

178ms

CAA

35ms

HTTPS

42ms

TLSA

138ms

SOA

0ms

MTA-STS

44ms

DNSSEC

107ms

SRV

61ms

Total

1345ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 12:12:44	1345ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 11:13:40	973ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 05:14:12	8864ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 02:45:42	1909ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 03:05:18	1434ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 17:03:36	2342ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 07:18:10	809ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 12:14:13	1175ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 03:37:46	2345ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 22:26:20	474ms	2 NS 1 A 1 MX	🔒 Secure	View