nrsim.dk

📜 Historical scan 2026-09-03 16:40:18 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nrsim.dk is a .dk domain served by 2 nameservers (ns1.desec.io, ns2.desec.org). It was registered on 15 November 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.104.248.218 is hosted by EWII Bredbaand A/S (AS204151) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 6 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 33ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.desec.io	2607:f740:e633:deec::2 45.54.76.1	ns1.desec.io ns1.desec.io	AS63911 NetActuate, Inc AS63911 NetActuate, Inc
ns2.desec.org	157.53.224.1 2607:f740:e00a:deec::2	ns2.desec.org ns2.desec.org	AS36217 NetActuate, Inc AS36217 NetActuate, Inc

🌍 A Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.104.248.218	3600s	87-104-248-218.static.kviknet.net	AS204151	EWII Bredbaand A/S	87.104.240.0/20	🇩🇰 Denmark	Farum

📧 MX Records#

8 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.250.147.27 2a00:1450:4025:c03::1a	rd-in-f27.1e100.net rc-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4000:1025::1a	lcdels-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx1.googlemail.com	—	—	—
10	3600s	aspmx2.googlemail.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
10	3600s	aspmx3.googlemail.com	173.194.41.26 173.194.41.26 2404:6800:4013:813::1b	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx4.googlemail.com	173.194.41.26 173.194.41.26 2404:6800:4003:c26::1b	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx5.googlemail.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	nrsim.dk → 87.104.248.218
🔶 Autoconfig	nrsim.dk → 87.104.248.218

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 198ms

TXT Record
Problems - contact hostmaster@nrsim.dk
v=spf1 a include:_spf.google.com -all

✉️ SPF#

Policy	Record (nrsim.dk)
-all (hard fail)	v=spf1 a include:_spf.google.com -all

📨 DMARC#

Policy	Record (_dmarc.nrsim.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:dmarc+a@nrsim.dk; ruf=mailto:dmarc+f@nrsim.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 2026-10-15 17:47:10

www CNAME	nrsim.dk (all on nrsim.dk) → 87.104.248.218 (AS204151)
www vs bare domain	Same network nrsim.dk: 87.104.248.218 (AS204151) www.nrsim.dk: 87.104.248.218 (AS204151)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 2 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.nrsim.dk	nrsim.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

108ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2025074358
Primary NS (MNAME)	get.desec.io
Responsible (RNAME)	get@desec.io
Refresh	86400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-09 07:26:07

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2006-11-15
Expires	2034-11-30 (2966d)

📋 WHOIS#

⏱️ Lookup Timing#

33ms

40ms

41ms

AAAA

31ms

TXT

198ms

CAA

37ms

HTTPS

33ms

TLSA

318ms

SOA

0ms

MTA-STS

50ms

DNSSEC

108ms

SRV

71ms

Total

1275ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 17:47:10	776ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 07:21:54	1193ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 05:14:37	1716ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 04:12:51	983ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 14:51:14	855ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 14:26:24	908ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-15 07:53:58	2519ms	2 NS 1 A 8 MX	🔒 Secure
2026-09-08 06:37:31	1276ms	2 NS 1 A 8 MX	🔒 Secure
2026-09-03 16:40:18 shown	1275ms	2 NS 1 A 8 MX	🔒 Secure
2026-08-27 18:49:50	1014ms	2 NS 1 A 8 MX	🔒 Secure
2026-08-26 17:22:20	959ms	2 NS 1 A 8 MX	🔒 Secure
2026-08-21 00:06:36	9422ms	2 NS 1 A 8 MX	🔒 Secure
2026-08-13 04:32:31	11357ms	2 NS 1 A 8 MX	🔒 Secure
2026-08-07 00:55:00	1784ms	2 NS 1 A 8 MX	🔒 Secure
2026-08-05 16:04:13	2320ms	2 NS 1 A 8 MX	🔒 Secure
2026-07-24 03:04:17	1848ms	2 NS 1 A 8 MX	🔒 Secure
2026-07-16 22:49:19	1968ms	2 NS 1 A 8 MX	🔒 Secure
2026-07-10 06:28:13	10085ms	2 NS 1 A 8 MX	🔒 Secure
2026-07-03 13:53:08	5363ms	2 NS 1 A 8 MX	🔒 Secure
2026-06-26 06:25:33	1052ms	2 NS 1 A 8 MX	🔒 Secure
2026-06-18 21:18:35	3908ms	2 NS 1 A 8 MX	🔒 Secure
2026-06-17 12:54:28	3650ms	2 NS 1 A 8 MX	🔒 Secure