rub.dk

📜 Historical scan 2026-09-30 16:16:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rub.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 10 June 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.165 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by rub-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 23ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.165	3600s	linux147.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 25ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rub-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::c 2a01:111:f403:ca04::d 2a01:111:f403:ca3c::a 52.101.181.156 52.101.209.28 52.101.68.25 52.101.73.120	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-am7pr02cu00300.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 → 40.104.116.40
🔶 Autoconfig	94.231.103.165

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 126ms

TXT Record
MS=ms42327759
v=spf1 include:spf1.venuemanager.net include:simply.com include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (rub.dk)
~all (soft fail)	v=spf1 include:spf1.venuemanager.net include:simply.com include:spf.protection.outlook.com ~all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-08 02:12:20

www	94.231.103.165 (AS48854) (address records, no CNAME)
www vs bare domain	Same network rub.dk: 94.231.103.165 (AS48854) www.rub.dk: 94.231.103.165 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-rub-dk._domainkey.rockunderbroen.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-rub-dk._domainkey.rockunderbroen.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: 8/10 · policy: ~all

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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

46ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2025091603
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-01 17:00:32

Field	Value
Registrar	Namehost by CoMaSys ApS
Registered	2002-06-10
Expires	2027-06-30 (254d)

📋 WHOIS#

⏱️ Lookup Timing#

23ms

30ms

25ms

AAAA

28ms

TXT

126ms

CAA

30ms

HTTPS

24ms

TLSA

299ms

SOA

34ms

MTA-STS

36ms

DNSSEC

46ms

SRV

38ms

Total

757ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 02:12:20	1020ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 16:23:00	900ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-30 16:16:27 shown	757ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-25 00:57:23	820ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-21 15:17:59	1016ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 01:55:34	4513ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-18 00:21:42	1048ms	4 NS 1 A 1 MX	🔒 Secure