fstb.dk DNS records

🖥️ Nameservers4 records 46ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1481.awsdns-57.org	205.251.197.201 2600:9000:5305:c900::1	ns-1481.awsdns-57.org ns-1481.awsdns-57.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1545.awsdns-01.co.uk	205.251.198.9 2600:9000:5306:900::1	ns-1545.awsdns-01.co.uk ns-1545.awsdns-01.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-495.awsdns-61.com	205.251.193.239 2600:9000:5301:ef00::1	ns-495.awsdns-61.com ns-495.awsdns-61.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-632.awsdns-15.net	205.251.194.120 2600:9000:5302:7800::1	ns-632.awsdns-15.net ns-632.awsdns-15.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records4 records 78ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
3.174.18.10	60s	server-3-174-18-10.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	3.128.0.0/10	🇺🇸 United States	—
3.174.18.73	60s	server-3-174-18-73.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	3.128.0.0/10	🇺🇸 United States	—
3.174.18.78	60s	server-3-174-18-78.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	3.128.0.0/10	🇺🇸 United States	—
3.174.18.90	60s	server-3-174-18-90.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	3.128.0.0/10	🇺🇸 United States	—

📧 MX Records1 records 26ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	fstb-dk.mail.protection.outlook.com	2a01:111:f403:ca09::2 2a01:111:f403:ca09::24 2a01:111:f403:ca09::b 2a01:111:f403:ca09::e 52.101.68.10 52.101.68.27 52.101.73.12 52.101.73.153	mail-am0pr83cu00402.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as8pr05cu00401.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

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 238ms

TXT Record
MS=4C59B02DD9548E5B50647B58436B101264FE088E
MS=ms47314334
v=spf1 include:spf.protection.outlook.com include:amazonses.com ~all

✉️ SPF

Policy	Record (fstb.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:amazonses.com ~all

📨 DMARC

Policy	Record (_dmarc.fstb.dk)
p=quarantine	v=DMARC1;p=quarantine;pct=100;fo=1

📬 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)

🔐 DNSSEC73ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-632.awsdns-15.net
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

46ms

A

78ms

MX

26ms

AAAA

69ms

TXT

238ms

CAA

63ms

HTTPS

61ms

TLSA

386ms

SOA

0ms

MTA-STS

62ms

DNSSEC

73ms

SRV

88ms

Total

3780ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 19:08:29	3780ms	4 NS 4 A 1 MX	🔓 Insecure	View
2026-06-26 15:58:39	4802ms	4 NS 4 A 1 MX	🔓 Insecure	View
2026-06-21 13:26:59	1169ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 10:20:53	2708ms	4 NS 4 A 1 MX	🔓 Insecure	View