nuub.dk DNS records

🖥️ Nameservers2 records 61ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.106.31	3600s	linux206.curanet.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	nuub-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::c 2a01:111:f403:ca09::3 2a01:111:f403:ca09::c 52.101.68.3 52.101.68.36 52.101.68.5 52.101.73.2	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as9pr07cu00302.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
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 156ms

TXT Record
google-site-verification=4ytFMjpeTxNdh4og1b92dH1_P2VR1its16hu4bzXgYM
google-site-verification=djloGHaClH9NHi3vA9CMZsGyDbn5aidMwm_JMrrDCro
v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com include:spf.curanet.dk -all

✉️ SPF

Policy	Record (nuub.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com include:spf.curanet.dk -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

🔗 TLSA / DANE

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

🔐 DNSSEC75ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082101
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

61ms

A

49ms

MX

59ms

AAAA

39ms

TXT

156ms

CAA

38ms

HTTPS

58ms

TLSA

309ms

SOA

0ms

MTA-STS

67ms

DNSSEC

75ms

SRV

63ms

Total

882ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 17:27:34	882ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 19:48:25	1441ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 08:12:54	1291ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 10:43:01	1175ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 00:35:11	839ms	2 NS 1 A 1 MX	🔒 Secure	View