rkt.dk

📜 Historical scan 2026-06-17 22:09:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rkt.dk is a .dk domain served by 2 nameservers (chris.ns.cloudflare.com, kim.ns.cloudflare.com). It was registered on 18 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.33.252 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by SMTP.GOOGLE.COM. 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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
chris.ns.cloudflare.com	108.162.193.85 172.64.33.85 173.245.59.85 2606:4700:58::adf5:3b55 2803:f800:50::6ca2:c155 2a06:98c1:50::ac40:2155	chris.ns.cloudflare.com chris.ns.cloudflare.com chris.ns.cloudflare.com chris.ns.cloudflare.com chris.ns.cloudflare.com chris.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kim.ns.cloudflare.com	108.162.192.126 172.64.32.126 173.245.58.126 2606:4700:50::adf5:3a7e 2803:f800:50::6ca2:c07e 2a06:98c1:50::ac40:207e	kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.33.252	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.152.18	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	SMTP.GOOGLE.COM	108.177.15.27 142.251.168.27 2a00:1450:4025:c01::1a 2a00:1450:4025:c01::1b 2a00:1450:4025:c03::1a 2a00:1450:4025:c03::1b 64.233.166.27 64.233.167.26 64.233.184.26	wr-in-f27.1e100.net wh-in-f27.1e100.net rd-in-f26.1e100.net rd-in-f27.1e100.net rc-in-f26.1e100.net rc-in-f27.1e100.net wm-in-f27.1e100.net wl-in-f26.1e100.net wa-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.33.252
🔶 Autoconfig	172.67.152.18

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:9812	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::6815:21fc	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 64ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.33.252,172.67.152.18 ech=AEX+DQBBnAAgACBeRsiogButg1cXG+B47GvAtSqi3Ug1C0cFugeMjxDaMwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:9812,2606:4700:3033::6815:21fc

🔌 SRV Records#

1 records 75ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	whm01.yayhosting.dk

📝 TXT Records#

3 records 188ms

TXT Record
google-site-verification=umggcK2gMmRw-Rryid_W0nSJ966xDKczseD7-MiWAOo
v=spf1 +include:_spf.yayhosting.dk -all
v=spf1 ip4:195.242.130.46 include:_spf.yayhosting.dk -all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (rkt.dk)
-all (hard fail)	v=spf1 +include:_spf.yayhosting.dk -all
-all (hard fail)	v=spf1 ip4:195.242.130.46 include:_spf.yayhosting.dk -all

📨 DMARC#

Policy	Record (_dmarc.rkt.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 2026-10-09 14:34:40

www	104.21.33.252 172.67.152.18 2606:4700:3035::6815:21fc 2606:4700:3037::ac43:9812 (AS13335) (address records, no CNAME)
www vs bare domain	Same network rkt.dk: 104.21.33.252 172.67.152.18 2606:4700:3035::6815:21fc 2606:4700:3037::ac43:9812 (AS13335) www.rkt.dk: 104.21.33.252 172.67.152.18 2606:4700:3035::6815:21fc 2606:4700:3037::ac43:9812 (AS13335)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit
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: 1/10 · policy: -all

error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

80ms

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

🏷️ SOA#

62ms

Field	Value
Serial	2406755502
Primary NS (MNAME)	chris.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 20:36:56

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2026-03-18
Expires	2027-03-17 (150d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

41ms

38ms

AAAA

38ms

TXT

188ms

CAA

64ms

HTTPS

64ms

TLSA

70ms

SOA

62ms

MTA-STS

45ms

DNSSEC

80ms

SRV

75ms

Total

1029ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 14:34:40	826ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 01:46:30	966ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-16 14:44:25	1261ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 09:34:42	2663ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-11 04:03:05	1732ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-16 06:53:53	1181ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 05:58:53	927ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 17:31:53	1290ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 22:09:03 shown	1029ms	2 NS 2 A 1 MX	🔓 Insecure