tjekklinik.dk

📜 Historical scan 2026-06-18 04:25:36  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tjekklinik.dk is a .dk domain served by 2 nameservers (carl.ns.cloudflare.com, uma.ns.cloudflare.com). It was registered on 16 March 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.70.114 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is not DNSSEC-signed, 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   45ms
NameserverIP addressesPTRASN / ISP
carl.ns.cloudflare.com 108.162.193.106
172.64.33.106
173.245.59.106
2606:4700:58::adf5:3b6a
2803:f800:50::6ca2:c16a
2a06:98c1:50::ac40:216a		 carl.ns.cloudflare.com
carl.ns.cloudflare.com
carl.ns.cloudflare.com
carl.ns.cloudflare.com
carl.ns.cloudflare.com
carl.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
uma.ns.cloudflare.com 108.162.192.146
172.64.32.146
173.245.58.146
2606:4700:50::adf5:3a92
2803:f800:50::6ca2:c092
2a06:98c1:50::ac40:2092		 uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.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   50ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.70.114 — — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.223.21 — — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

2 records   58ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mail.protonmail.ch 176.119.200.128
185.205.70.128
185.70.42.128		 mail.protonmail.ch
mail.protonmail.ch
mail.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG
20 — mailsec.protonmail.ch 176.119.200.129
185.205.70.129
185.70.42.129		 mailsec.protonmail.ch
mailsec.protonmail.ch
mailsec.protonmail.ch		 AS62371 Proton AG
AS62371 Proton AG
AS62371 Proton AG

🔷 AAAA Records (IPv6)#

2 records   49ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::6815:4672 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3033::ac43:df15 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   55ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.70.114,172.67.223.21 ech=AEX+DQBBHQAgACDvr0foaUL+kfe8cQ/jzRqJm9WG78Sy1RChao5wzEe6ewAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:4672,2606:4700:3033::ac43:df15

📝 TXT Records#

3 records   455ms
TXT Record
google-site-verification=Uv2FkMiU69UAJHewSxUhD4gC8SXcWMdi2jz6n0Wut6A
protonmail-verification=0e51f93b01e142bab0aba98d8ff6fca2ca43102d
v=spf1 include:_spf.protonmail.ch ~all

✉️ SPF#

PolicyRecord (tjekklinik.dk)
~all (soft fail) v=spf1 include:_spf.protonmail.ch ~all

📨 DMARC#

PolicyRecord (_dmarc.tjekklinik.dk)
p=quarantine v=DMARC1; p=quarantine

📬 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 2026-10-22 03:09:59
wwwNXDOMAIN
www vs bare domainwww does not resolve (all like this)
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records   60ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…
SMTP _25._tcp.mail.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 76BB66711DA416433CA890A5B2E5A053…
SMTP _25._tcp.mailsec.protonmail.ch DANE-EE · SPKI · SHA-256 6111A5698D23C89E09C36FF833C1487E…

🔐 DNSSEC#

147ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

44ms
FieldValue
Serial2403823451
Primary NS (MNAME)carl.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-19 03:43:26
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2022-03-16
Expires2027-03-15 (142d)

🔗 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
cma.dkPunktum dk A/S (direct)
ellanova.dkPunktum dk A/S (direct)
idunheim.dkPunktum dk A/S (direct)
medispa.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
45ms
A
50ms
MX
58ms
AAAA
49ms
TXT
455ms
CAA
47ms
HTTPS
55ms
TLSA
60ms
SOA
44ms
MTA-STS
44ms
DNSSEC
147ms
SRV
75ms
Total
1248ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-22 03:09:59 665ms 2 NS 2 A 2 MX 🔓 Insecure
2026-10-08 00:06:19 753ms 2 NS 2 A 2 MX 🔓 Insecure
2026-10-03 22:52:04 536ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-24 09:40:26 622ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-23 01:06:17 689ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-12 22:27:59 937ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-08 04:26:54 926ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-03 16:28:11 696ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-27 04:40:07 768ms 2 NS 2 A 2 MX 🔓 Insecure
2026-07-09 02:57:29 2337ms 2 NS 2 A 2 MX 🔓 Insecure
2026-06-28 06:07:53 2257ms 2 NS 2 A 2 MX 🔓 Insecure
2026-06-24 06:27:26 918ms 2 NS 2 A 2 MX ❓ Unknown
2026-06-19 22:51:07 670ms 2 NS 2 A 2 MX ⚠️ Bogus
2026-06-18 04:25:36 shown 1248ms 2 NS 2 A 2 MX 🔓 Insecure
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