njkn.dk

📜 Historical scan 2026-08-22 00:48:53  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

njkn.dk is a .dk domain served by 2 nameservers (chad.ns.cloudflare.com, rachel.ns.cloudflare.com). It was registered on 13 March 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.27.124 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by no.onso.xyz. 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#

2 records   66ms
NameserverIP addressesPTRASN / ISP
chad.ns.cloudflare.com 108.162.193.82
172.64.33.82
173.245.59.82
2606:4700:58::adf5:3b52
2803:f800:50::6ca2:c152
2a06:98c1:50::ac40:2152		 chad.ns.cloudflare.com
chad.ns.cloudflare.com
chad.ns.cloudflare.com
chad.ns.cloudflare.com
chad.ns.cloudflare.com
chad.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
rachel.ns.cloudflare.com 108.162.192.215
172.64.32.215
173.245.58.215
2606:4700:50::adf5:3ad7
2803:f800:50::6ca2:c0d7
2a06:98c1:50::ac40:20d7		 rachel.ns.cloudflare.com
rachel.ns.cloudflare.com
rachel.ns.cloudflare.com
rachel.ns.cloudflare.com
rachel.ns.cloudflare.com
rachel.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   68ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.27.124 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.142.150 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   66ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s no.onso.xyz 157.90.23.42
2a01:4f8:1c1c:e469::1		 no.onso.xyz
no.onso.xyz		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverno.onso.xyz → 157.90.23.42
🔶 Autoconfigno.onso.xyz → 157.90.23.42

🔷 AAAA Records (IPv6)#

2 records   74ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::6815:1b7c 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3033::ac43:8e96 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   69ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.27.124,172.67.142.150 ech=AEX+DQBBdAAgACDmLZV6RyibplgFLS3VhBlI9D+Oz99kyhUlMCyYLrWKUgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:1b7c,2606:4700:3033::ac43:8e96

🔌 SRV Records#

1 records   16038ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 1 443 no.onso.xyz

📝 TXT Records#

1 records   8266ms
TXT Record
v=spf1 mx -all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_dmarc.njkn.dk)
p=none (monitor only) v=DMARC1; p=none;

📬 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 2026-10-19 10:51:16
www104.21.27.124 172.67.142.150 2606:4700:3033::6815:1b7c 2606:4700:3033::ac43:8e96 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records   8156ms
Service / OwnerTypeCert association
SMTP _25._tcp.no.onso.xyz DANE-EE · SPKI · SHA-256 CF33A11A9097B2534CE9D5E33C454043…

🔐 DNSSEC#

193ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2412796584
Primary NS (MNAME)chad.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-19 11:21:33
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2023-03-13
Expires2027-03-12 (142d)

🔗 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
66ms
A
68ms
MX
66ms
AAAA
74ms
TXT
8266ms
CAA
72ms
HTTPS
69ms
TLSA
8156ms
SOA
0ms
MTA-STS
104ms
DNSSEC
193ms
SRV
16038ms
Total
25434ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-19 10:51:16 1787ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-08 18:10:32 2562ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-06 17:50:37 2782ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-30 16:40:04 864ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-28 16:44:24 1226ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-26 16:17:36 794ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-16 02:33:26 3472ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-26 14:06:10 984ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-25 14:10:40 969ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-22 00:48:53 shown 25434ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-09 15:10:55 1221ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-28 13:43:11 1697ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-04 22:15:06 5000ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-26 04:33:01 1585ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-25 17:18:59 1013ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-22 15:43:47 1326ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-22 05:44:57 1166ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-18 01:36:22 2826ms 2 NS 2 A 1 MX 🔒 Secure
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