fsl.dk

Records from scan: 2026-10-02 14:04:27  ·  645ms total  ·  last checked 2026-10-17 04:10 (unchanged)
⬇ 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   46ms
NameserverIP addressesPTRASN / 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   49ms
IPTTLPTRASNISP / OrgCIDRCountryCity
76.76.21.21 3600s — AS16509 Amazon.com, Inc. 76.76.21.0/24 🇺🇸 United States Walnut

📧 MX Records#

2 records   38ms
PriorityTTLMail ServerIP addressesPTRASN
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#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records   93ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 10 443 owa.fsl.dk
_sipfederationtls._tcp 0 1 5061 sipfed.online.lync.com

📝 TXT Records#

6 records   168ms
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#

PolicyRecord (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#

PolicyRecord (_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#

checked 2026-10-14 23:19:52
www CNAMEcname.vercel-dns.com (all on vercel-dns.com)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
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#

84ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

27ms
FieldValue
Serial2026092501
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-15 08:25:07
FieldValue
RegistrarSimply.com A/S
Registered1998-01-20
Expires2028-03-31 (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).

DomainRegistrar
elsekr.dkSimply.com A/S
fairløn.dkSimply.com A/S
frieskoler.dkSimply.com A/S
trioannonce.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
46ms
A
49ms
MX
38ms
AAAA
45ms
TXT
168ms
CAA
37ms
HTTPS
58ms
TLSA
250ms
SOA
27ms
MTA-STS
58ms
DNSSEC
84ms
SRV
93ms
Total
645ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-02 14:04:27 shown 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 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
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