fsl.dk

📜 Historical scan 2026-08-01 23:13:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fsl.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 20 January 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 76.76.21.21 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx12.comendosystems.com, mx6.comendosystems.net. The zone is DNSSEC-signed and validates, 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#

2 records 29ms

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 Records#

1 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
76.76.21.21	3600s	—	AS16509	Amazon.com, Inc.	76.76.21.0/24	🇺🇸 United States	Walnut

📧 MX Records#

2 records 20ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	1800s	mx12.comendosystems.com	192.162.219.155 2a01:77c0:1619:4101:d99:c22:fb4d:290e	mx41.electric.net mx10.electric.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	1800s	mx6.comendosystems.net	192.162.219.49	mx41.electric.net	AS16509 Amazon.com, Inc.

📧 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 Records#

2 records 97ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	10	443	owa.fsl.dk
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

6 records 163ms

TXT Record
8AB0A83434DCD0505D5FE8AA4A79B037AA354EC50025D0FC0F72D614DDA630E9
facebook-domain-verification=r1pa1ijne34cae4xqbp32n90dh7zpi
google-site-verification=OQa5TOOfN65DkERkPfZvcfgomUnZpU3uES22XEWI718
google-site-verification=SCQ4-91E_idrvkssaChkL0AtK3IZ2C56_cGPJTRj0rY
MS=A6A73A3E915EAC1210363F39F65A7B3A2DADA9A4
v=spf1 a mx ip4:93.167.190.198 ip4:93.167.190.194 ip4:81.95.247.14 ip4:89.104.206.0/24 ip4:91.235.232.0/24 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 include:spf.protection.outlook.com include:spf.eu.signature365.net include:spf.hostnordic.com include:amazonses.com include:mailmailmail.net -all

✉️ SPF#

Policy	Record (fsl.dk)
-all (hard fail)	v=spf1 a mx ip4:93.167.190.198 ip4:93.167.190.194 ip4:81.95.247.14 ip4:89.104.206.0/24 ip4:91.235.232.0/24 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 include:spf.protection.outlook.com include:spf.eu.signature365.net include:spf.hostnordic.com include:amazonses.com include:mailmailmail.net -all

📨 DMARC#

Policy	Record (_dmarc.fsl.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:rlg@fsl.dk,mailto:a792446f@mxtoolbox.dmarc-report.com; ruf=mailto:rlg@fsl.dk,mailto:a792446f@forensics.dmarc-report.com; 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 2026-10-14 23:19:52

www CNAME	cname.vercel-dns.com (all on vercel-dns.com) → 66.33.60.194 76.76.21.93 (AS16509)
www vs bare domain	Same network fsl.dk: 76.76.21.21 (AS16509) www.fsl.dk: 66.33.60.194 76.76.21.93 (AS16509)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
k1	dkim.mcsv.net	RSA · ~1024 bit below 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: 9/10 · policy: -all

warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2045ms

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

🏷️ SOA#

22ms

Field	Value
Serial	2026072601
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-15 08:25:07

Field	Value
Registrar	Simply.com A/S
Registered	1998-01-20
Expires	2028-03-31 (531d)

🔗 Same registrant#

4 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
elsekr.dk	Simply.com A/S
fairløn.dk	Simply.com A/S
frieskoler.dk	Simply.com A/S
trioannonce.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

29ms

30ms

20ms

AAAA

28ms

TXT

163ms

CAA

30ms

HTTPS

29ms

TLSA

107ms

SOA

22ms

MTA-STS

39ms

DNSSEC

2045ms

SRV

97ms

Total

6961ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 14:04:27	645ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-27 06:17:14	640ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-26 22:35:18	2413ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-23 21:36:32	717ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-26 17:29:33	574ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-25 12:48:14	888ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-01 23:13:11 shown	6961ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-26 09:20:19	1346ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-19 20:28:35	1414ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-18 19:07:17	2388ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-26 06:08:15	582ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 10:17:35	3777ms	2 NS 1 A 2 MX	🔒 Secure