kthx.dk

Records from scan: 2026-10-17 13:42:30  ·  1554ms total
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kthx.dk is a .dk domain served by 2 nameservers (amy.ns.cloudflare.com, pete.ns.cloudflare.com). It was registered on 14 September 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.82.11 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, publishes a 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#

2 records   94ms
NameserverIP addressesPTRASN / ISP
amy.ns.cloudflare.com 108.162.192.101
172.64.32.101
173.245.58.101
2606:4700:50::adf5:3a65
2803:f800:50::6ca2:c065
2a06:98c1:50::ac40:2065		 amy.ns.cloudflare.com
amy.ns.cloudflare.com
amy.ns.cloudflare.com
amy.ns.cloudflare.com
amy.ns.cloudflare.com
amy.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
pete.ns.cloudflare.com 108.162.193.136
172.64.33.136
173.245.59.136
2606:4700:58::adf5:3b88
2803:f800:50::6ca2:c188
2a06:98c1:50::ac40:2188		 pete.ns.cloudflare.com
pete.ns.cloudflare.com
pete.ns.cloudflare.com
pete.ns.cloudflare.com
pete.ns.cloudflare.com
pete.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   118ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.82.11 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.167.135 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

📧
No MX records found

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover172.67.167.135
🔶 Autoconfig172.67.167.135

🔷 AAAA Records (IPv6)#

2 records   133ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3031::6815:520b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3034::ac43:a787 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   112ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.82.11,172.67.167.135 ech=AEX+DQBBjAAgACCyA+LJ9GV4iZeUjJIfPQORABJAjxTZSkXn2VnI6b33HAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:520b,2606:4700:3034::ac43:a787

📝 TXT Records#

1 records   256ms
TXT Record
v=spf1 -all

✉️ SPF#

PolicyRecord (kthx.dk)
-all (hard fail) v=spf1 -all

📨 DMARC#

PolicyRecord (_dmarc.kthx.dk)
p=reject v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 2026-10-17 13:42:30
www104.21.82.11 172.67.167.135 2606:4700:3031::6815:520b 2606:4700:3034::ac43:a787 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.kthx.dk jqOSZjuf4Qb7PphuFUXs-k3h5kcJChf6miMGhwbLE44
TXT _acme-challenge.kthx.dk nTWXXvDMVz0RPNvZObK8YqjwVbSzvBNTf4N_2I5G6sk
TXT _acme-challenge.kthx.dk tynMkDl9RLTMqddmsnkLoE9f1iXr-vd0Kb-wcqgEahQ

🔗 TLSA / DANE#

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

🔐 DNSSEC#

174ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

104ms
FieldValue
Serial2417660369
Primary NS (MNAME)amy.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-12 07:16:39
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2007-09-14
Expires2027-10-31 (378d)

🔗 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
erderbonus.dkPunktum dk A/S (direct)
flork.dkPunktum dk A/S (direct)
slopstack.dkPunktum dk A/S (direct)
snemarch.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
94ms
A
118ms
MX
134ms
AAAA
133ms
TXT
256ms
CAA
144ms
HTTPS
112ms
TLSA
103ms
SOA
104ms
MTA-STS
128ms
DNSSEC
174ms
SRV
145ms
Total
1554ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-17 13:42:30 shown 1554ms 2 NS 2 A 0 MX 🔒 Secure
2026-10-14 09:42:20 1448ms 2 NS 2 A 0 MX 🔒 Secure
2026-10-13 07:22:03 495ms 2 NS 2 A 0 MX 🔒 Secure
2026-10-12 06:55:08 1737ms 2 NS 2 A 0 MX 🔒 Secure
2026-09-29 13:31:05 1039ms 2 NS 2 A 0 MX 🔒 Secure
2026-09-25 12:57:09 565ms 2 NS 2 A 0 MX 🔒 Secure
2026-09-03 16:00:25 1514ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-13 19:31:59 962ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-08 16:47:48 1031ms 2 NS 2 A 0 MX 🔒 Secure
2026-08-01 05:24:08 861ms 2 NS 2 A 0 MX 🔒 Secure
2026-07-16 10:25:45 912ms 2 NS 2 A 0 MX 🔒 Secure
2026-06-26 08:46:56 592ms 2 NS 2 A 0 MX 🔒 Secure
2026-06-20 15:45:49 458ms 2 NS 2 A 0 MX 🔒 Secure
2026-06-18 07:07:15 901ms 2 NS 2 A 0 MX 🔒 Secure
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