rlm.dk

📜 Historical scan 2026-06-20 00:41:37  ·  ← 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 DNSSEC-signed but currently fails validation, 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   37ms
NameserverIP addressesPTRASN / 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   33ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.20.156 600s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.193.44 600s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   39ms
PriorityTTLMail ServerIP addressesPTRASN
5 600s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover104.21.20.156
🔶 Autoconfig104.21.20.156

🔷 AAAA Records (IPv6)#

2 records   87ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::ac43:c12c 600s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::6815:149c 600s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   46ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.20.156,172.67.193.44 ech=AEX+DQBBmQAgACAW2Zml2I0DYSJ6ZUQjSHgtTQ4aJ7FXZdhBDW7ShydAEAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:c12c,2606:4700:3037::6815:149c

🔌 SRV Records#

1 records   57ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com

📝 TXT Records#

2 records   172ms
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)
PolicyRecord (rlm.dk)
-all (hard fail) v=spf1 -all
-all (hard fail) v=spf1 include:spf.simply.com -all

📨 DMARC#

PolicyRecord (_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
www104.21.20.156 172.67.193.44 2606:4700:3035::6815:149c 2606:4700:3037::ac43:c12c (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

✍️ DKIM keys#

6 found
SelectorCNAMEKey
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   105ms
Service / OwnerTypeCert 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#

63ms
CheckResult
Validation Status⚠️ Bogus
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsbroken trust chain resolving 'rlm.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

50ms
FieldValue
Serial2406038635
Primary NS (MNAME)coco.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup
📋 WHOIS#

⏱️ Lookup Timing#

NS
37ms
A
33ms
MX
39ms
AAAA
87ms
TXT
172ms
CAA
40ms
HTTPS
46ms
TLSA
105ms
SOA
50ms
MTA-STS
35ms
DNSSEC
63ms
SRV
57ms
Total
614ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
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 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 shown 614ms 2 NS 2 A 1 MX ⚠️ Bogus
2026-06-17 11:41:39 1338ms 2 NS 2 A 1 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone