kortx.dk

📜 Historical scan 2026-06-17 11:46:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kortx.dk is a .dk domain served by 2 nameservers (corey.ns.cloudflare.com, donna.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.4.67 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 40ms

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 Records#

2 records 35ms

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

📧 MX Records#

5 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	aspmx.l.google.com	2a00:1450:4010:c02::1a 2a00:1450:4010:c02::1a 64.233.163.27	le-in-f26.1e100.net le-in-x1a.1e100.net lj-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	—	alt1.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
5	—	alt2.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	alt3.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	alt4.aspmx.l.google.com	173.194.43.26 2607:f8b0:400e:c1e::1b	yudlsqd-in-f26.1e100.net yudlsqd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:9a11	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:443	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 46ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.4.67,172.67.154.17 ech=AEX+DQBBbAAgACAxx2XvV4JFUCVdgEmdGoqDip2taUNXK2q8lgpoC9YLSQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:9a11,2606:4700:3034::6815:443

📝 TXT Records#

2 records 185ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-07 16:58:48

www	104.21.4.67 172.67.154.17 2606:4700:3031::6815:443 2606:4700:3033::ac43:9a11 (AS13335) (address records, no CNAME)
www vs bare domain	Same network kortx.dk: 104.21.4.67 172.67.154.17 2606:4700:3031::6815:443 2606:4700:3033::ac43:9a11 (AS13335) www.kortx.dk: 104.21.4.67 172.67.154.17 2606:4700:3031::6815:443 2606:4700:3033::ac43:9a11 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

149ms

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	2405884069
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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

40ms

35ms

67ms

AAAA

40ms

TXT

185ms

CAA

50ms

HTTPS

46ms

TLSA

4045ms

SOA

34ms

MTA-STS

66ms

DNSSEC

149ms

SRV

0ms

Total

5051ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 14:28:59	779ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-29 13:29:39	930ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-31 19:53:54	1624ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-30 17:17:58	778ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-25 11:26:21	826ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-02 07:56:43	9393ms	2 NS 2 A 5 MX	❓ Unknown
2026-06-24 03:51:17	1076ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 11:46:27 shown	5051ms	2 NS 2 A 5 MX	🔓 Insecure