rcs-messaging.dk

📜 Historical scan 2026-08-27 06:56:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rcs-messaging.dk is a .dk domain served by 2 nameservers (lucy.ns.cloudflare.com, stan.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.83.129 is hosted by Cloudflare, Inc. (AS13335). 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 29ms

Nameserver	IP addresses	PTR	ASN / ISP
lucy.ns.cloudflare.com	108.162.192.133 172.64.32.133 173.245.58.133 2606:4700:50::adf5:3a85 2803:f800:50::6ca2:c085 2a06:98c1:50::ac40:2085	lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
stan.ns.cloudflare.com	108.162.193.235 172.64.33.235 173.245.59.235 2606:4700:58::adf5:3beb 2803:f800:50::6ca2:c1eb 2a06:98c1:50::ac40:21eb	stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com stan.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 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.83.129	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.176.151	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 26ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::6815:5381	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:b097	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 27ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.83.129,172.67.176.151 ech=AEX+DQBBMgAgACAK/5fTb2SGmh/d1ROuV4VvD+I4hyBiYZFs3xtD623NJQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:5381,2606:4700:3037::ac43:b097

📝 TXT Records#

1 records 146ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (rcs-messaging.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.rcs-messaging.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 10:31:58

www	Exists, no address
www vs bare domain	www does not resolve rcs-messaging.dk: 104.21.83.129 172.67.176.151 2606:4700:3036::6815:5381 2606:4700:3037::ac43:b097 (AS13335) www.rcs-messaging.dk: no address (all like this)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.rcs-messaging.dk	6iNhLP2ZaPTZZf0_YysECeXSQfjU2G_Trlyay39K-9A
TXT	_acme-challenge.rcs-messaging.dk	o9LsgMq_wAsEFf1qUxp55uOT37mip-ERs-bNXpYEoW0

🔗 TLSA / DANE#

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

🔐 DNSSEC#

106ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413251770
Primary NS (MNAME)	lucy.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#

29ms

32ms

AAAA

26ms

TXT

146ms

CAA

21ms

HTTPS

27ms

TLSA

49ms

SOA

0ms

MTA-STS

42ms

DNSSEC

106ms

SRV

54ms

Total

509ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:31:58	437ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-01 14:16:30	714ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-21 20:03:07	574ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-13 05:53:41	777ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-09 03:47:28	2530ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-29 14:19:16	1831ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 23:33:19	631ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 06:56:07 shown	509ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-15 01:30:46	16677ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-23 02:36:12	10388ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-14 16:22:56	897ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-29 10:50:32	1135ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-27 08:02:48	1871ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-26 22:51:41	796ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-26 06:41:56	895ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-22 01:43:39	490ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-19 15:56:14	663ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 12:07:04	1398ms	2 NS 2 A 0 MX	🔓 Insecure