fs-byg.dk DNS records

🖥️ Nameservers2 records 65ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.145	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	fsbyg-dk0e.mail.protection.outlook.com	2a01:111:f403:c967:: 2a01:111:f403:c967::2 2a01:111:f403:c967::4 2a01:111:f403:c967::6 52.101.209.2 52.101.209.4 52.101.209.6 52.101.209.74	mail-cpcp307cu00400.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpcp307cu00402.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)1 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:88:3b0d:e50d:e38	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 209ms

TXT Record
MS=ms23859691
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.fs-byg.dk)
p=reject	v=DMARC1; p=reject

📬 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)

🔐 DNSSEC129ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082409
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

65ms

A

43ms

MX

38ms

AAAA

40ms

TXT

209ms

CAA

52ms

HTTPS

41ms

TLSA

619ms

SOA

0ms

MTA-STS

87ms

DNSSEC

129ms

SRV

84ms

Total

1499ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 11:26:23	1499ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 20:18:32	1208ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 11:14:20	2691ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 08:58:09	10239ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-15 03:38:54	7684ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-14 02:10:00	9049ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-12 23:37:53	1225ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-20 21:08:20	1279ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-29 19:50:42	661ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-27 04:30:25	804ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-24 07:45:28	1139ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 00:21:06	990ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 04:19:37	1453ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 10:10:37	2853ms	2 NS 1 A 2 MX	🔒 Secure	View