rubcrew.dk DNS records

🖥️ Nameservers3 records 38ms

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

🌍 A Records2 records 59ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.142.117	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	🇺🇸 United States	—
172.66.2.113	3600s	—	AS13335	Cloudflare, Inc.	172.66.0.0/22	🇺🇸 United States	—

📧 MX Records1 records 88ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rubcrew-dk.mail.protection.outlook.com	2a01:111:f403:ca09::1 2a01:111:f403:ca09::4 2a01:111:f403:ca09::e 2a01:111:f403:ca48::8 52.101.103.137 52.101.181.153 52.101.68.15 52.101.73.28	mail-as9pr07cu00301.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 247ms

TXT Record
MS=ms65138975
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.rubcrew.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC123ms

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

🏷️ SOA0ms

Field	Value
Serial	2026011601
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

38ms

A

59ms

MX

88ms

AAAA

63ms

TXT

247ms

CAA

43ms

HTTPS

73ms

TLSA

753ms

SOA

0ms

MTA-STS

102ms

DNSSEC

123ms

SRV

91ms

Total

1445ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 12:52:37	1445ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-26 17:12:19	850ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-08-18 17:52:23	7341ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-07-02 10:36:35	1810ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-06-24 21:19:42	1333ms	3 NS 2 A 1 MX	🔒 Secure	View
2026-06-23 08:56:23	1155ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 09:08:45	1172ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 05:37:20	907ms	3 NS 2 A 1 MX	🔒 Secure	View