sb-c.dk DNS records

🖥️ Nameservers2 records 38ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	3600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	sbc-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::a 2a01:111:f403:ca04::d 2a01:111:f403:ca09::e 52.101.68.21 52.101.68.32 52.101.68.36 52.101.73.30	mail-db4pr02cu00307.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am7pr05cu00306.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 74ms

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

📝 TXT Records2 records 185ms

TXT Record
MS=ms28251631
v=spf1 include:spf.protection.outlook.com include:_custspf.one.com ip4:93.90.117.1/24 ip4:93.90.115.1/24 -all

✉️ SPF

Policy	Record (sb-c.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_custspf.one.com ip4:93.90.117.1/24 ip4:93.90.115.1/24 -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)

🔐 DNSSEC83ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082301
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

38ms

A

40ms

MX

42ms

AAAA

36ms

TXT

185ms

CAA

37ms

HTTPS

48ms

TLSA

188ms

SOA

0ms

MTA-STS

61ms

DNSSEC

83ms

SRV

74ms

Total

770ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 04:54:34	770ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 06:13:35	4178ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 06:17:22	6200ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 03:03:53	5505ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 04:05:36	1150ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 00:16:59	5177ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 17:18:07	850ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 15:34:32	1314ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 17:11:55	858ms	2 NS 1 A 1 MX	🔒 Secure	View