teoritjek.dk

📜 Historical scan 2026-06-18 08:02:51  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

teoritjek.dk is a .dk domain served by 2 nameservers (aspen.ns.cloudflare.com, kai.ns.cloudflare.com). It was registered on 2 April 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.20.99 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.mailpod15-cph3.g1i.one.com, mx2.mailpod15-cph3.g1i.one.com and 2 more. 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   38ms
NameserverIP addressesPTRASN / ISP
aspen.ns.cloudflare.com 108.162.194.109
162.159.38.109
172.64.34.109
2606:4700:50::a29f:266d
2803:f800:50::6ca2:c26d
2a06:98c1:50::ac40:226d		 aspen.ns.cloudflare.com
aspen.ns.cloudflare.com
aspen.ns.cloudflare.com
aspen.ns.cloudflare.com
aspen.ns.cloudflare.com
aspen.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
kai.ns.cloudflare.com 108.162.193.188
172.64.33.188
173.245.59.188
2606:4700:58::adf5:3bbc
2803:f800:50::6ca2:c1bc
2a06:98c1:50::ac40:21bc		 kai.ns.cloudflare.com
kai.ns.cloudflare.com
kai.ns.cloudflare.com
kai.ns.cloudflare.com
kai.ns.cloudflare.com
kai.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   34ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.20.99 — — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.192.17 — — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

4 records   33ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.mailpod15-cph3.g1i.one.com 104.37.35.36 mx1.mailpod15-cph3.g1i.one.com AS51468 One.com A/S
10 — mx2.mailpod15-cph3.g1i.one.com 104.37.35.37 mx2.mailpod15-cph3.g1i.one.com AS51468 One.com A/S
10 — mx3.mailpod15-cph3.g1i.one.com 104.37.35.38 mx3.mailpod15-cph3.g1i.one.com AS51468 One.com A/S
10 — mx4.mailpod15-cph3.g1i.one.com 104.37.35.39 mx4.mailpod15-cph3.g1i.one.com AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

2 records   45ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3031::ac43:c011 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3032::6815:1463 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   43ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.20.99,172.67.192.17 ech=AEX+DQBBXgAgACBYdqEg9t+ceUEOewqh+wmq9pQHyffrmdwg5FCZq2THbwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:c011,2606:4700:3032::6815:1463

📝 TXT Records#

3 records   172ms
TXT Record
brevo-code:f0b98f8d6516becc3ae5966821b45e0c
google-site-verification=8FtPK25vMbKnPCoFvpnnQu_OOmB3IfFXm9J8CSP9JNg
google-site-verification=mSWkwDLCxFN9V63DEn85pC0WnuTCDPAFKxpFU38Sz0U

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

PolicyRecord (_dmarc.teoritjek.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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 2026-10-14 10:30:12
www104.21.20.99 172.67.192.17 2606:4700:3033::ac43:c011 2606:4700:3034::6815:1463 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

🔗 TLSA / DANE#

4 records   63ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 DB00CDA1DB82CC93CBF96D7D5806F329…
SMTP _25._tcp.mx2.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 DB00CDA1DB82CC93CBF96D7D5806F329…
SMTP _25._tcp.mx3.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 DB00CDA1DB82CC93CBF96D7D5806F329…
SMTP _25._tcp.mx4.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 DB00CDA1DB82CC93CBF96D7D5806F329…

🔐 DNSSEC#

96ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

50ms
FieldValue
Serial2407220271
Primary NS (MNAME)aspen.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-13 13:51:07
FieldValue
RegistrarONE.COM A/S
Registered2025-04-02
Expires2027-04-01 (163d)

🔗 Same registrant#

2 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
indoorgolflab.dkONE.COM A/S
yonasvalentin.dkONE.COM A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
38ms
A
34ms
MX
33ms
AAAA
45ms
TXT
172ms
CAA
41ms
HTTPS
43ms
TLSA
63ms
SOA
50ms
MTA-STS
51ms
DNSSEC
96ms
SRV
62ms
Total
894ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-14 10:30:11 767ms 2 NS 2 A 2 MX 🔓 Insecure
2026-10-13 09:53:56 3133ms 2 NS 2 A 2 MX 🔓 Insecure
2026-10-12 03:44:33 2696ms 2 NS 2 A 2 MX 🔓 Insecure
2026-10-11 01:53:23 3311ms 2 NS 2 A 2 MX 🔓 Insecure
2026-09-24 05:25:14 697ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-22 06:43:21 9871ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-16 06:47:27 9543ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-14 14:26:55 10808ms 2 NS 2 A 2 MX 🔓 Insecure
2026-08-07 04:51:22 1779ms 2 NS 2 A 2 MX 🔓 Insecure
2026-07-17 08:29:08 9547ms 2 NS 2 A 2 MX 🔓 Insecure
2026-07-15 12:32:59 3364ms 2 NS 2 A 2 MX 🔓 Insecure
2026-06-27 18:33:42 2070ms 2 NS 2 A 2 MX 🔓 Insecure
2026-06-25 23:56:18 1250ms 2 NS 2 A 2 MX 🔓 Insecure
2026-06-18 08:02:51 shown 894ms 2 NS 2 A 4 MX 🔓 Insecure
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