rsmdk.dk

Records from scan: 2026-08-31 12:09:56 · 1392ms total · last checked 2026-10-17 06:36 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rsmdk.dk is a .dk domain served by 2 nameservers (ns1.alco.dk, ns2.alco.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.24.57.1 is hosted by Render (AS397273) in United States. Mail is handled by rsmdk-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 72ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.alco.dk	46.225.229.1	ns1.alco.dk	AS24940 Hetzner Online GmbH
ns2.alco.dk	89.167.94.156	ns2.alco.dk	AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 66ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.24.57.1	3600s	ip-216-24-57-1.ingress.render.com	AS397273	Render	216.24.57.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rsmdk-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::5 2a01:111:f403:ca09::a 2a01:111:f403:ca48::a 52.101.68.0 52.101.68.18 52.101.68.25 52.101.68.29	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 327ms

TXT Record
MS=ms92240135
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (rsmdk.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.rsmdk.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:DMARC@rsmdk.dk; ruf=mailto:DMARC@rsmdk.dk; fo=1;

📬 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#

checked 2026-10-09 18:59:56

www CNAME	rsmdk.dk (all on rsmdk.dk) → 216.24.57.1 (AS397273)
www vs bare domain	Same network rsmdk.dk: 216.24.57.1 (AS397273) www.rsmdk.dk: 216.24.57.1 (AS397273)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-rsmdk-dk._domainkey.brandtrevision.onmicrosoft.com	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

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

96ms

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	2025121815
Primary NS (MNAME)	ns1.alco.dk
Responsible (RNAME)	hostmaster@alco.dk
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	43200s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

72ms

66ms

53ms

AAAA

58ms

TXT

327ms

CAA

60ms

HTTPS

61ms

TLSA

703ms

SOA

0ms

MTA-STS

82ms

DNSSEC

96ms

SRV

92ms

Total

1392ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-31 12:09:56 shown	1392ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 06:16:25	1217ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-24 11:32:09	2727ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 04:34:51	4676ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 00:22:35	2321ms	2 NS 1 A 1 MX	🔓 Insecure