si-c.dk DNS records

🖥️ Nameservers2 records 46ms

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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.111	3600s	webcluster2.webpod13-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sic-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09::24 2a01:111:f403:ca09::3 2a01:111:f403:ca48::8 52.101.103.137 52.101.103.36 52.101.73.155 52.101.73.16	mail-db4pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com mail-as2pr05cu00100.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 → 40.104.116.24

🔷 AAAA Records (IPv6)1 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10b:807c:7e83:8f8b:5ea0	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 176ms

TXT Record
MS=ms76535033
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (si-c.dk)
-all (hard fail)	v=spf1 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

🔗 TLSA / DANE

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

🔐 DNSSEC105ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081701
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

46ms

A

41ms

MX

47ms

AAAA

40ms

TXT

176ms

CAA

45ms

HTTPS

58ms

TLSA

314ms

SOA

0ms

MTA-STS

56ms

DNSSEC

105ms

SRV

59ms

Total

964ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 11:49:13	964ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 21:28:42	8939ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 18:24:54	1084ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 21:51:26	3046ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 07:21:33	2756ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 20:24:49	1185ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 12:42:39	1113ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 13:34:40	657ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 00:23:18	1145ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 14:43:46	1290ms	2 NS 1 A 1 MX	🔒 Secure	View