rlm.dk

📜 Historical scan 2026-09-13 03:06:08 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rlm.dk is a .dk domain served by 2 nameservers (coco.ns.cloudflare.com, huxley.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.20.156 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.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 148ms

Nameserver	IP addresses	PTR	ASN / ISP
coco.ns.cloudflare.com	108.162.192.104 172.64.32.104 173.245.58.104 2606:4700:50::adf5:3a68 2803:f800:50::6ca2:c068 2a06:98c1:50::ac40:2068	coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
huxley.ns.cloudflare.com	108.162.195.188 162.159.44.188 172.64.35.188 2606:4700:58::a29f:2cbc 2803:f800:50::6ca2:c3bc 2a06:98c1:50::ac40:23bc	huxley.ns.cloudflare.com huxley.ns.cloudflare.com huxley.ns.cloudflare.com huxley.ns.cloudflare.com huxley.ns.cloudflare.com huxley.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 108ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.20.156	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.193.44	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 126ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.193.44
🔶 Autoconfig	104.21.20.156

🔷 AAAA Records (IPv6)#

2 records 88ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:149c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:c12c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 136ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.20.156,172.67.193.44 ech=AEX+DQBBzgAgACBrnV2Rnsl8bn1g9JQ16KCgx3afAzlR063Am/ggiXj8dwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:149c,2606:4700:3037::ac43:c12c

🔌 SRV Records#

1 records 142ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records#

2 records 255ms

TXT Record
v=spf1 -all
v=spf1 include:spf.simply.com -all

✉️ SPF#

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

Policy	Record (rlm.dk)
-all (hard fail)	v=spf1 -all
-all (hard fail)	v=spf1 include:spf.simply.com -all

📨 DMARC#

Policy	Record (_dmarc.rlm.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:93adafb8389349e79ef7d151e03b861d@dmarc-reports.cloudflare.net

📬 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 18:42:26

www	104.21.20.156 172.67.193.44 2606:4700:3035::6815:149c 2606:4700:3037::ac43:c12c (AS13335) (address records, no CNAME)
www vs bare domain	Same network rlm.dk: 104.21.20.156 172.67.193.44 2606:4700:3035::6815:149c 2606:4700:3037::ac43:c12c (AS13335) www.rlm.dk: 104.21.20.156 172.67.193.44 2606:4700:3035::6815:149c 2606:4700:3037::ac43:c12c (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

6 found

Selector	CNAME	Key
default	—	Revoked (empty key)
dkim	—	Revoked (empty key)
k1	—	Revoked (empty key)
mail	—	Revoked (empty key)
s1	—	Revoked (empty key)
s2	—	Revoked (empty key)

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: 0/10 · policy: -all

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

🔗 TLSA / DANE#

2 records 718ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

172ms

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	2414502412
Primary NS (MNAME)	coco.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#

148ms

108ms

126ms

AAAA

88ms

TXT

255ms

CAA

113ms

HTTPS

136ms

TLSA

718ms

SOA

0ms

MTA-STS

131ms

DNSSEC

172ms

SRV

142ms

Total

1611ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 13:42:01	574ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 01:11:35	493ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 18:27:45	2469ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-13 03:06:08 shown	1611ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 02:49:57	1568ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-21 02:46:30	10218ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-16 04:02:50	9441ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-02 11:55:21	1202ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 00:41:37	614ms	2 NS 2 A 1 MX	⚠️ Bogus
2026-06-17 11:41:39	1338ms	2 NS 2 A 1 MX	🔓 Insecure