explainer.dk

Records from scan: 2026-10-12 08:56:16  ·  713ms total  ·  last checked 2026-10-15 17:54 (unchanged)
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explainer.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 11 October 2026 (WHOIS) and first appeared in the .dk zone on 12 October 2026. Its website address 66.241.125.191 is hosted by Fly.io, Inc. (AS40509) in United States. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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#

3 records   39ms
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

🌍 A Records#

1 records   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
66.241.125.191 600s ip-66-241-125-191.shared.customer.flyio.net AS40509 Fly.io, Inc. 66.241.124.0/23 🇺🇸 United States —

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

1 records   30ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a09:8280:1::1b0:d00e:0 600s ipv6.customer.flyio.net AS40509 Fly.io, Inc. 2a09:8280:1:0:0:0:0:0/48 🇺🇸 United States —

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-12 08:56:16
wwwNXDOMAIN
www vs bare domainwww does not resolve
explainer.dk: 66.241.125.191 2a09:8280:1::1b0:d00e:0 (AS40509)
www.explainer.dk: no address
(all like this)
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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

112ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

34ms
FieldValue
Serial2026101105
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 08:38:40
FieldValue
RegistrarSimply.com A/S
Registered2026-10-11
Expires2027-10-10 (358d)

🔗 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
39ms
A
38ms
MX
34ms
AAAA
30ms
TXT
93ms
CAA
24ms
HTTPS
24ms
TLSA
275ms
SOA
34ms
MTA-STS
48ms
DNSSEC
112ms
SRV
41ms
Total
713ms
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