nemsim.dk

📜 Historical scan 2026-08-26 15:22:08 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nemsim.dk is a .dk domain served by 2 nameservers (asa.ns.cloudflare.com, clyde.ns.cloudflare.com). It was registered on 17 October 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.40.42 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, 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 24ms

Nameserver	IP addresses	PTR	ASN / ISP
asa.ns.cloudflare.com	108.162.192.246 172.64.32.246 173.245.58.246 2606:4700:50::adf5:3af6 2803:f800:50::6ca2:c0f6 2a06:98c1:50::ac40:20f6	asa.ns.cloudflare.com asa.ns.cloudflare.com asa.ns.cloudflare.com asa.ns.cloudflare.com asa.ns.cloudflare.com asa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
clyde.ns.cloudflare.com	108.162.193.91 172.64.33.91 173.245.59.91 2606:4700:58::adf5:3b5b 2803:f800:50::6ca2:c15b 2a06:98c1:50::ac40:215b	clyde.ns.cloudflare.com clyde.ns.cloudflare.com clyde.ns.cloudflare.com clyde.ns.cloudflare.com clyde.ns.cloudflare.com clyde.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 26ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.40.42	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.175.49	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.9.27 2a00:1450:4025:c01::1a	rc-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 27ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:af31	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:282a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 29ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.40.42,172.67.175.49 ech=AEX+DQBBSQAgACCroazjlZoPusoav985mbUuVIPv3RYBlmlh0o2FPT/vCgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:af31,2606:4700:3036::6815:282a

📝 TXT Records#

3 records 160ms

TXT Record
google-site-verification=-jmhD0SOiGJ3xO1fc8Byci5qbAIwAxOiaQWVwjuvvls
google-site-verification=tLfUvazS5EY9w5OXlvjgzFxgUkr5QpH4OfJ9zOUMZ_w
v=spf1 a mx include:spf.speedio.dk ip4:144.76.111.145 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (nemsim.dk)
~all (soft fail)	v=spf1 a mx include:spf.speedio.dk ip4:144.76.111.145 include:_spf.google.com ~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 2026-10-10 18:56:20

www	104.21.40.42 172.67.175.49 2606:4700:3030::ac43:af31 2606:4700:3036::6815:282a (AS13335) (address records, no CNAME)
www vs bare domain	Same network nemsim.dk: 104.21.40.42 172.67.175.49 2606:4700:3030::ac43:af31 2606:4700:3036::6815:282a (AS13335) www.nemsim.dk: 104.21.40.42 172.67.175.49 2606:4700:3030::ac43:af31 2606:4700:3036::6815:282a (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.nemsim.dk	MRiB7yNcggP8G6y4DhrpKJPre5LRKpkPLzGhnpVajcc
TXT	_acme-challenge.nemsim.dk	SO3No0P54YvvtZ4Vkdy_VJSe-UzZBq8RVEOrFvdqUC8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

95ms

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	2413210548
Primary NS (MNAME)	asa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 04:11:43

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2018-10-17
Expires	2035-10-31 (3297d)

📋 WHOIS#

⏱️ Lookup Timing#

24ms

26ms

36ms

AAAA

27ms

TXT

160ms

CAA

41ms

HTTPS

29ms

TLSA

159ms

SOA

0ms

MTA-STS

58ms

DNSSEC

95ms

SRV

52ms

Total

2520ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-15 12:37:32	2679ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-08 04:22:14	2064ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 13:46:27	1549ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-26 15:22:08 shown	2520ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-17 16:52:28	25407ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-05 21:44:03	1917ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-18 03:03:27	972ms	2 NS 2 A 5 MX	🔓 Insecure