rkbgym.dk

📜 Historical scan 2026-06-18 02:09:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rkbgym.dk is a .dk domain served by 4 nameservers (ns-1387.awsdns-45.org, ns-1618.awsdns-10.co.uk, ns-194.awsdns-24.com and 1 more). It was registered on 30 November 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by dk.mx1.mailanyone.net, dk.mx2.mx25.net and 2 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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#

4 records 263ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1387.awsdns-45.org	205.251.197.107 2600:9000:5305:6b00::1	ns-1387.awsdns-45.org ns-1387.awsdns-45.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1618.awsdns-10.co.uk	205.251.198.82 2600:9000:5306:5200::1	ns-1618.awsdns-10.co.uk ns-1618.awsdns-10.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-194.awsdns-24.com	205.251.192.194 2600:9000:5300:c200::1	ns-194.awsdns-24.com ns-194.awsdns-24.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-592.awsdns-10.net	205.251.194.80 2600:9000:5302:5000::1	ns-592.awsdns-10.net ns-592.awsdns-10.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records#

1 records 160ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.17	—	linux52.unoeuro.com	AS48854	—	—	—	—

📧 MX Records#

4 records 269ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	dk.mx1.mailanyone.net	192.162.219.155 2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd	mx41.electric.net mx11.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	—	dk.mx2.mx25.net	192.162.219.49	mx41.electric.net	AS16509 Amazon.com, Inc.
30	—	dk.mx3.mailanyone.net	192.162.219.255 2a01:77c0:1619:4101:d99:c22:fb4d:290e	mx41.electric.net mx10.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
40	—	dk.mx4.mx25.net	192.162.219.255	mx41.electric.net	AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.228.56

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 345ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

4 records 349ms

TXT Record
inst=Ringkjoebing Gymnasium
MS=ms90632912
uvmid=667015
v=spf1 ip4:62.116.194.114 a:mail.rkbgym.dk include:_spf.stejtech.net include:spf.protection.outlook.com include:servers.mcsv.net include:mail.ithozting.dk -all

✉️ SPF#

Policy	Record (rkbgym.dk)
-all (hard fail)	v=spf1 ip4:62.116.194.114 a:mail.rkbgym.dk include:_spf.stejtech.net include:spf.protection.outlook.com include:servers.mcsv.net include:mail.ithozting.dk -all

📨 DMARC#

Policy	Record (_dmarc.rkbgym.dk)
p=reject	v=DMARC1; p=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 2026-10-25 22:59:20

www CNAME	rkbgym.dk (all on rkbgym.dk) → 94.231.103.17 (AS48854)
www vs bare domain	Same network rkbgym.dk: 94.231.103.17 (AS48854) www.rkbgym.dk: 94.231.103.17 (AS48854)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
k1	dkim.mcsv.net	RSA · ~1024 bit below 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: 8/10 · policy: -all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

8 records 234ms

Service / Owner	Type	Cert association
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx1.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx3.mailanyone.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx4.mx25.net	DANE-EE · Full cert · SHA-256	443DFE296DAC92DD311766BAD0B04CC7…

🔐 DNSSEC#

226ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

165ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-592.awsdns-10.net
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-21 02:25:26

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2001-11-30
Expires	2026-12-31 (65d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

263ms

160ms

269ms

AAAA

156ms

TXT

349ms

CAA

164ms

HTTPS

162ms

TLSA

234ms

SOA

165ms

MTA-STS

164ms

DNSSEC

226ms

SRV

345ms

Total

2300ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 22:59:20	3156ms	4 NS 1 A 4 MX	🔒 Secure
2026-10-01 03:16:55	871ms	4 NS 1 A 4 MX	🔒 Secure
2026-09-27 02:25:59	3344ms	4 NS 1 A 4 MX	🔒 Secure
2026-06-18 02:09:00 shown	2300ms	4 NS 1 A 4 MX	🔒 Secure