rng.dk

📜 Historical scan 2026-09-23 16:17:40 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rng.dk is a .dk domain served by 2 nameservers (cameron.ns.cloudflare.com, mallory.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.43.68 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx4.spamfri.dk, mx2.spamfri.dk and 2 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 48ms

Nameserver	IP addresses	PTR	ASN / ISP
cameron.ns.cloudflare.com	108.162.195.107 162.159.44.107 172.64.35.107 2606:4700:58::a29f:2c6b 2803:f800:50::6ca2:c36b 2a06:98c1:50::ac40:236b	cameron.ns.cloudflare.com cameron.ns.cloudflare.com cameron.ns.cloudflare.com cameron.ns.cloudflare.com cameron.ns.cloudflare.com cameron.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mallory.ns.cloudflare.com	108.162.194.83 162.159.38.83 172.64.34.83 2606:4700:50::a29f:2653 2803:f800:50::6ca2:c253 2a06:98c1:50::ac40:2253	mallory.ns.cloudflare.com mallory.ns.cloudflare.com mallory.ns.cloudflare.com mallory.ns.cloudflare.com mallory.ns.cloudflare.com mallory.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 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.43.68	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.221.119	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

4 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx4.spamfri.dk	193.200.91.108 2001:67c:564:fffd::4001	mx4.spamfri.dk mx4.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
20	300s	mx2.spamfri.dk	193.200.91.109 2001:67c:564:fffd::2001	mx2.spamfri.dk mx2.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
30	300s	mx3.spamfri.dk	2a00:1b18:2:3:fe::2 62.69.152.43 62.69.152.43	mx3.spamfri.dk 43.34-46.152.69.62.in-addr.arpa mx3.spamfri.dk	AS47527 DLX A/S AS47527 DLX A/S AS47527 DLX A/S
40	300s	mx1.spamfri.dk	195.242.131.16 2001:67c:564:fffd::1001	mx1.spamfri.dk mx1.spamfri.dk	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.221.119
🔶 Autoconfig	104.21.43.68

🔷 AAAA Records (IPv6)#

2 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:dd77	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:2b44	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 55ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.43.68,172.67.221.119 ech=AEX+DQBBHAAgACDnWMn0+i0V5WmO/VfYupDsp3htBVtCJUyRgIyyLolrVAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:dd77,2606:4700:3037::6815:2b44

🔌 SRV Records#

1 records 91ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	cpanelemaildiscovery.cpanel.net

📝 TXT Records#

2 records 266ms

TXT Record
google-site-verification=7_2UbjUefTvqee47j909kw0YZAA_V-vAEjEQVSg49ko
v=spf1 +a +mx +ip4:193.200.90.102 include:_spf.e-studio.dk ~all

✉️ SPF#

Policy	Record (rng.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:193.200.90.102 include:_spf.e-studio.dk ~all

📨 DMARC#

Policy	Record (_dmarc.rng.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 15:47:34

www	104.21.43.68 172.67.221.119 2606:4700:3034::ac43:dd77 2606:4700:3037::6815:2b44 (AS13335) (address records, no CNAME)
www vs bare domain	Same network rng.dk: 104.21.43.68 172.67.221.119 2606:4700:3034::ac43:dd77 2606:4700:3037::6815:2b44 (AS13335) www.rng.dk: 104.21.43.68 172.67.221.119 2606:4700:3034::ac43:dd77 2606:4700:3037::6815:2b44 (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.rng.dk	5egwPF7-Q5-23GEki9wgWz_0UBOS6uPuT_Xps3Ouqxs
TXT	_acme-challenge.rng.dk	NfLcbav2tBiNSXpwxkoIgy5Ed2sDgCjwhyp6znDbFGg
TXT	_acme-challenge.rng.dk	iefFOX6RHasFirZJuR2H9cuwdT1OhinIX-FxOLzkZp8

🔗 TLSA / DANE#

4 records 75ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.spamfri.dk	DANE-EE · SPKI · SHA-256	884451547A03D0AC2F628D943839BAA6…
SMTP _25._tcp.mx2.spamfri.dk	DANE-EE · SPKI · SHA-256	6598C93F79B95376BB8099E9AC862167…
SMTP _25._tcp.mx3.spamfri.dk	DANE-EE · SPKI · SHA-256	BBFB0694919290E5BC9D6E2C6F47D846…
SMTP _25._tcp.mx4.spamfri.dk	DANE-EE · SPKI · SHA-256	4EE743A99328AEF5142706CA5FD3AD61…

🔐 DNSSEC#

89ms

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	2415641420
Primary NS (MNAME)	cameron.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#

48ms

47ms

59ms

AAAA

41ms

TXT

266ms

CAA

47ms

HTTPS

55ms

TLSA

75ms

SOA

0ms

MTA-STS

79ms

DNSSEC

89ms

SRV

91ms

Total

854ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 15:47:34	527ms	2 NS 2 A 4 MX	🔓 Insecure
2026-10-02 19:17:07	647ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-24 16:44:39	1449ms	2 NS 2 A 4 MX	🔓 Insecure
2026-09-23 16:17:40 shown	854ms	2 NS 2 A 4 MX	🔓 Insecure
2026-08-27 18:40:37	1143ms	2 NS 2 A 4 MX	🔓 Insecure
2026-07-26 19:23:02	10461ms	2 NS 2 A 4 MX	🔓 Insecure
2026-07-01 18:07:16	1690ms	2 NS 2 A 4 MX	🔓 Insecure
2026-06-21 12:24:12	686ms	2 NS 2 A 4 MX	🔓 Insecure
2026-06-20 05:23:38	690ms	2 NS 2 A 4 MX	🔓 Insecure
2026-06-18 02:02:23	3223ms	2 NS 2 A 4 MX	🔓 Insecure