kortx.dk DNS records

🖥️ Nameservers2 records 96ms

Nameserver	IP addresses	PTR	ASN / ISP
corey.ns.cloudflare.com	108.162.195.24 162.159.44.24 172.64.35.24 2606:4700:58::a29f:2c18 2803:f800:50::6ca2:c318 2a06:98c1:50::ac40:2318	corey.ns.cloudflare.com corey.ns.cloudflare.com corey.ns.cloudflare.com corey.ns.cloudflare.com corey.ns.cloudflare.com corey.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
donna.ns.cloudflare.com	108.162.192.151 172.64.32.151 173.245.58.151 2606:4700:50::adf5:3a97 2803:f800:50::6ca2:c097 2a06:98c1:50::ac40:2097	donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com donna.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 98ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.4.67	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.154.17	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records5 records 97ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	142.251.127.26 2a00:1450:4001:c21::1b	lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	172.253.152.27 2a00:1450:4010:c22::1a	yulpptr-in-f27.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1a	lcbomp-in-f26.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.154.17
🔶 Autoconfig	172.67.154.17

🔷 AAAA Records (IPv6)2 records 98ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:443	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:9a11	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 98ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.4.67,172.67.154.17 ech=AEX+DQBBBgAgACBEL2kTc7t0No4sUAg1lNvXQizBjLJ7M2y7TwDjxpjiUQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:443,2606:4700:3033::ac43:9a11

📝 TXT Records2 records 382ms

TXT Record
google-site-verification=MDpTB_SJGp0NWxgk9l_GEKQ_jj_bjv9h8_cJDcXKElw
v=spf1 include:_spf.google.com ~all

✉️ SPF

Policy	Record (kortx.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC

Policy	Record (_dmarc.kortx.dk)
p=reject	v=DMARC1; p=reject;rua=mailto:dmarckortx@gennemtaenkt.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)

🔐 DNSSEC305ms

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	2413633519
Primary NS (MNAME)	corey.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

96ms

A

98ms

MX

97ms

AAAA

98ms

TXT

382ms

CAA

112ms

HTTPS

98ms

TLSA

254ms

SOA

0ms

MTA-STS

173ms

DNSSEC

305ms

SRV

184ms

Total

1624ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 19:53:54	1624ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-30 17:17:58	778ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-25 11:26:21	826ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-08-02 07:56:43	9393ms	2 NS 2 A 5 MX	❓ Unknown	View
2026-06-24 03:51:17	1076ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-17 11:46:27	5051ms	2 NS 2 A 5 MX	🔓 Insecure	View