rtfm.dk

📜 Historical scan 2026-06-18 06:30:12 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rtfm.dk is a .dk domain served by 4 nameservers (ns1.quickdns.dk, ns2.quickdns.dk, ns3.quickdns.dk and 1 more). It was registered on 7 October 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 173.8.116.122 is hosted by Comcast Cable Communications, LLC (AS7922) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 6 more. The zone is not DNSSEC-signed, has no 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#

4 records 166ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.quickdns.dk	178.62.214.234 2a03:b0c0:2:d0::552:9001	— —	AS14061 DigitalOcean, LLC AS14061 DigitalOcean, LLC
ns2.quickdns.dk	185.126.153.42	amy.quickdns.dk	AS47527 DLX A/S
ns3.quickdns.dk	178.62.214.234 2a03:b0c0:2:d0::552:9001	— —	AS14061 DigitalOcean, LLC AS14061 DigitalOcean, LLC
ns4.quickdns.dk	185.126.153.42	amy.quickdns.dk	AS47527 DLX A/S

🌍 A Records#

1 records 288ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
173.8.116.122	—	HYPERION.STDERR.NET	AS7922	Comcast Cable Communications, LLC	173.8.0.0/13	🇺🇸 United States	Saint Paul

📧 MX Records#

8 records 149ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	aspmx.l.google.com	2a00:1450:4010:c1c::1b 64.233.162.26	la-in-f27.1e100.net li-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	—	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1b	lcbomp-in-f27.1e100.net lcbomp-in-f27.1e100.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	—	aspmx2.googlemail.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx3.googlemail.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx4.googlemail.com	192.178.230.26 2404:6800:400b:c01b::1a	yunrtab-in-f26.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx5.googlemail.com	173.194.43.26 2607:f8b0:400e:c1e::1a	yudlsqd-in-f26.1e100.net yudlsqd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	pasiphae.stderr.net	173.8.116.123	173-8-116-123-Minnesota.hfc.comcastbusiness.net	AS7922 Comcast Cable Communications, LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	hyperion.stderr.net → 173.8.116.122
🔶 Autoconfig	hyperion.stderr.net → 173.8.116.122

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-08 22:54:29

www CNAME	hyperion.stderr.net (all on stderr.net) → 173.8.116.122 (AS7922)
www vs bare domain	Same network rtfm.dk: 173.8.116.122 (AS7922) www.rtfm.dk: 173.8.116.122 (AS7922)
Wildcard	Yes: any name under the zone resolves

🔗 TLSA / DANE#

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

🔐 DNSSEC#

400ms

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

🏷️ SOA#

268ms

Field	Value
Serial	2013052300
Primary NS (MNAME)	ns1.quickdns.dk
Responsible (RNAME)	hostmaster@quickdns.dk
Refresh	14400s
Retry	7200s
Expire	2415600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-14 12:45:20

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-10-07
Expires	2026-12-31 (74d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
eibner.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

166ms

288ms

149ms

AAAA

153ms

TXT

585ms

CAA

266ms

HTTPS

271ms

TLSA

455ms

SOA

268ms

MTA-STS

257ms

DNSSEC

400ms

SRV

547ms

Total

2293ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 22:54:29	1685ms	4 NS 1 A 8 MX	🔓 Insecure
2026-10-01 01:56:03	1613ms	4 NS 1 A 8 MX	🔓 Insecure
2026-06-24 07:58:31	2319ms	4 NS 1 A 8 MX	❓ Unknown
2026-06-18 06:30:12 shown	2293ms	4 NS 1 A 8 MX	🔓 Insecure