dcsl.dk

📜 Historical scan 2026-08-16 18:45:34  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dcsl.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 5 March 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.62.98.28 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail.dcsl.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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   6ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   3ms
IPTTLPTRASNISP / OrgCIDRCountryCity
87.62.98.28 86400s 0x573e621c.static.cust.fastspeed.dk AS3292 TDC Holding A/S 87.62.0.0/15 🇩🇰 Denmark Fredericia

📧 MX Records#

1 records   3ms
PriorityTTLMail ServerIP addressesPTRASN
10 86400s mail.dcsl.dk 2a09:5e41:856:1a0:5054:ff:fe13:5bae
87.62.98.28		 —
0x573e621c.static.cust.fastspeed.dk		 AS209424 Fastspeed A/s
AS3292 TDC Holding A/S

🔷 AAAA Records (IPv6)#

1 records   17ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a09:5e41:856:1a0:5054:ff:fe1d:a2cf 44187s — AS209424 Fastspeed A/s 2a09:5e41:800::/37 🇩🇰 Denmark Aalborg

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   33ms
TXT Record
v=spf1 ip4:87.62.98.28 ip6:2a09:5e41:856:1a0:5054:ff:fe13:5bae -all

✉️ SPF#

PolicyRecord (dcsl.dk)
-all (hard fail) v=spf1 ip4:87.62.98.28 ip6:2a09:5e41:856:1a0:5054:ff:fe13:5bae -all

📨 DMARC#

PolicyRecord (_dmarc.dcsl.dk)
p=reject v=DMARC1; p=reject; rua=mailto:reports@dcsl.dk; ruf=mailto:reports@dcsl.dk; fo=0; adkim=s; aspf=s; pct=100; rf=afrf; ri=86400; sp=reject

📬 MTA-STS#

170ms
CheckResult
Status🔒 Enforce
TXT record (_mta-sts)✓ Found
HTTPS policy✓ Valid
Modeenforce
Policy ID20260408170809
max_age2419200s
Policy MXmail.dcsl.dk

📈 TLSRPT#

StatusReport address (rua)
✓ Enabled mailto:reports@dcsl.dk

📜 CAA Records#

2 records   16ms
FlagsTagValue
0 iodef mailto:hostmaster@dcsl.dk
0 issue letsencrypt.org

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 03:45:31
www CNAMEdcsl.dk (all on dcsl.dk)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
dkim — 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: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

2 records   127ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.dcsl.dk DANE-EE · SPKI · SHA-256 8BE928578B0FB67822C2BA8A76B4B8DA…
HTTPS _443._tcp.dcsl.dk DANE-EE · SPKI · SHA-256 67540F88011D976AF1D90571ABFD0EF8…

🔐 DNSSEC#

115ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
Key typeAlgorithmPublic key
KSK ECDSA P-256/SHA-256 HQRBHSgHDQ8MuG5l5j9WulYC8+JMedxICg+AuD0n…

🏷️ SOA#

2ms
FieldValue
Serial2026080300
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-12 02:11:13
FieldValue
RegistrarSimply.com A/S
Registered2021-03-05
Expires2035-03-31 (3087d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
6ms
A
3ms
MX
3ms
AAAA
17ms
TXT
33ms
CAA
16ms
HTTPS
29ms
TLSA
127ms
SOA
2ms
MTA-STS
170ms
DNSSEC
115ms
SRV
0ms
Total
800ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 03:45:30 1234ms 4 NS 1 A 1 MX 🔒 Secure
2026-10-02 14:44:38 6440ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-16 18:45:34 shown 800ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-06 16:42:45 1594ms 4 NS 1 A 1 MX 🔒 Secure
2026-07-08 23:11:01 928ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-17 01:23:54 513ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-17 01:21:08 837ms 4 NS 1 A 1 MX 🔒 Secure
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