nielstraining.dk

📜 Historical scan 2026-07-05 17:45:21 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nielstraining.dk is a .dk domain served by 2 nameservers (ganz.ns.cloudflare.com, oaklyn.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.68.28 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route3.mx.cloudflare.net, route2.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, has no 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 70ms

Nameserver	IP addresses	PTR	ASN / ISP
ganz.ns.cloudflare.com	108.162.195.40 162.159.44.40 172.64.35.40 2606:4700:58::a29f:2c28 2803:f800:50::6ca2:c328 2a06:98c1:50::ac40:2328	ganz.ns.cloudflare.com ganz.ns.cloudflare.com ganz.ns.cloudflare.com ganz.ns.cloudflare.com ganz.ns.cloudflare.com ganz.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
oaklyn.ns.cloudflare.com	108.162.194.90 162.159.38.90 172.64.34.90 2606:4700:50::a29f:265a 2803:f800:50::6ca2:c25a 2a06:98c1:50::ac40:225a	oaklyn.ns.cloudflare.com oaklyn.ns.cloudflare.com oaklyn.ns.cloudflare.com oaklyn.ns.cloudflare.com oaklyn.ns.cloudflare.com oaklyn.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 84ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.68.28	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.185.122	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 66ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
9	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
32	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
50	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)#

2 records 59ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:441c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:b97a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 81ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.68.28,172.67.185.122 ech=AEX+DQBBrwAgACCiAWNJMPqWjjoITwZbZ7Hu2k0JbhPYvhNZDHb2sEwiTAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:441c,2606:4700:3031::ac43:b97a

📝 TXT Records#

1 records 233ms

TXT Record
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (nielstraining.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-07 22:56:34

www	104.21.68.28 172.67.185.122 2606:4700:3032::ac43:b97a 2606:4700:3037::6815:441c (AS13335) (address records, no CNAME)
www vs bare domain	Same network nielstraining.dk: 104.21.68.28 172.67.185.122 2606:4700:3032::ac43:b97a 2606:4700:3037::6815:441c (AS13335) www.nielstraining.dk: 104.21.68.28 172.67.185.122 2606:4700:3032::ac43:b97a 2606:4700:3037::6815:441c (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

9 records 667ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…

🔐 DNSSEC#

237ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2408742289
Primary NS (MNAME)	ganz.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#

70ms

84ms

66ms

AAAA

59ms

TXT

233ms

CAA

56ms

HTTPS

81ms

TLSA

667ms

SOA

0ms

MTA-STS

72ms

DNSSEC

237ms

SRV

260ms

Total

3094ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 22:56:34	1080ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-30 20:44:03	1699ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-30 16:50:59	4500ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-29 16:39:48	1166ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-24 15:46:38	1058ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-05 18:45:17	936ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-01 18:51:14	2219ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-05 17:45:21 shown	3094ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-17 22:00:57	1361ms	2 NS 2 A 3 MX	🔓 Insecure