refab.dk DNS records

🖥️ Nameservers2 records 91ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 102ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.251	3600s	linux8.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 72ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	refab-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::a 2a01:111:f403:ca04::b 2a01:111:f403:ca04::d 52.101.68.29 52.101.68.5 52.101.68.8 52.101.73.4	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am0pr83cu00404.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	185.21.40.251

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 390ms

TXT Record
_globalsign-domain-verification=nOjxhWFoSatyQArWp1eS56UYrMjdR9b4PWBegpRh5b
MS=ms54840689
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.refab.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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)

🔐 DNSSEC251ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

91ms

A

102ms

MX

72ms

AAAA

58ms

TXT

390ms

CAA

82ms

HTTPS

144ms

TLSA

868ms

SOA

0ms

MTA-STS

184ms

DNSSEC

251ms

SRV

188ms

Total

2252ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 15:07:15	2252ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 10:41:32	1030ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 10:30:20	1187ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 15:50:32	6083ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 05:30:13	1050ms	2 NS 1 A 1 MX	🔒 Secure	View