fstb.dk

📜 Historical scan 2026-08-26 19:08:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fstb.dk is a .dk domain served by 4 nameservers (ns-1481.awsdns-57.org, ns-1545.awsdns-01.co.uk, ns-495.awsdns-61.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.174.18.10 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by fstb-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 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 Records#

4 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 Records#

1 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 Records#

3 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 12:38:31

www CNAME	fstb.dk (all on fstb.dk) → 3.174.18.10 3.174.18.73 3.174.18.78 3.174.18.90 (AS16509)
www vs bare domain	Same network fstb.dk: 3.174.18.10 3.174.18.73 3.174.18.78 3.174.18.90 (AS16509) www.fstb.dk: 3.174.18.10 3.174.18.73 3.174.18.78 3.174.18.90 (AS16509)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-fstb-dk._domainkey.foreningenfstb.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

73ms

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

🏷️ SOA#

0ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

46ms

78ms

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
2026-10-09 12:38:31	4454ms	4 NS 4 A 1 MX	🔓 Insecure
2026-09-30 23:24:05	3259ms	4 NS 4 A 1 MX	🔓 Insecure
2026-09-26 10:01:14	12044ms	4 NS 4 A 1 MX	🔓 Insecure
2026-09-09 09:02:41	5270ms	4 NS 4 A 1 MX	🔓 Insecure
2026-08-26 19:08:29 shown	3780ms	4 NS 4 A 1 MX	🔓 Insecure
2026-06-26 15:58:39	4802ms	4 NS 4 A 1 MX	🔓 Insecure
2026-06-21 13:26:59	1169ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 10:20:53	2708ms	4 NS 4 A 1 MX	🔓 Insecure