cga.dk

📜 Historical scan 2026-09-23 19:42:58  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cga.dk is a .dk domain served by 2 nameservers (ken.ns.cloudflare.com, lily.ns.cloudflare.com). It was registered on 10 October 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.27.246 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 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   45ms

🌍 A Records#

2 records   45ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.27.246 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.143.175 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

5 records   39ms

🔷 AAAA Records (IPv6)#

2 records   36ms

🔐 HTTPS Records#

1 records   36ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.27.246,172.67.143.175 ech=AEX+DQBBjgAgACBrJpolLnTKU9cr4TLgrfo+RcOasSJKTLtpTQwYtTbgKAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:8faf,2606:4700:3037::6815:1bf6

📝 TXT Records#

3 records   189ms
TXT Record
google-site-verification=4nnAhRT7CicqQivGdjP4kHzrckWX-9KmIWfBLgpkB0M
v=spf1 a mx include:spf.mandrillapp.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mailmailmail.net -all\"
v=spf1 a mx include:spf.mandrillapp.com include:spf.mandrillapp.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mailmailmail.net -all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)
PolicyRecord (cga.dk)
no all — incomplete SPF v=spf1 a mx include:spf.mandrillapp.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mailmailmail.net -all\"
-all (hard fail) v=spf1 a mx include:spf.mandrillapp.com include:spf.mandrillapp.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mailmailmail.net -all

📨 DMARC#

PolicyRecord (_dmarc.cga.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:bd01dd80a57f104@rep.dmarcanalyzer.com; ruf=mailto:bd01dd80a57f104@for.dmarcanalyzer.com; pct=100; sp=quarantine; fo=1

📬 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 2026-10-07 15:32:28

✍️ DKIM keys#

2 found
SelectorCNAMEKey
google — RSA · ~2048 bit
k1 dkim.mcsv.net RSA · ~1024 bit below 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: 7/10 · policy: none

  • error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)
  • error Unknown mechanism "-all\"": receivers treat the record as a permanent error
  • warn No "all" and no redirect: mail from unlisted servers gets a neutral result

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.cga.dk XUljdotj6LdgC61GeFIXtPxQljGpv0Lec5WF8TnpQz4
TXT _acme-challenge.cga.dk bzC1Ktkc8dFlagwKAn2u_aTnr6gu0JXhqsVxeEx9-LA

🔗 TLSA / DANE#

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

🔐 DNSSEC#

144ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2415550124
Primary NS (MNAME)ken.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-13 09:03:12
FieldValue
RegistrarSimply.com A/S
Registered2014-10-10
Expires2029-04-30 (922d)

🔗 Same registrant#

104 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
a-speakers.dkSimply.com A/S
adrian-hughes.dkSimply.com A/S
alicehojer.dkSimply.com A/S
andersbjork.dkSimply.com A/S
andersdrejer.dkSimply.com A/S
anderskjaergaard.dkSimply.com A/S
anderskjærgaard.dkSimply.com A/S
andreaskamm.dkSimply.com A/S
andreykazankov.dkSimply.com A/S
annesophiahermansen.dkSimply.com A/S
bookforedragsholder.dkSimply.com A/S
brianholmforedrag.dkSimply.com A/S
charliedarwin.dkSimply.com A/S
cw-ejd.dkSimply.com A/S
defortabtesoenner.dkSimply.com A/S
docenten-arkiv.dkSimply.com A/S
ellenhillingsø.dkSimply.com A/S
enandentid.dkSimply.com A/S
foredragmarietolstrup.dkSimply.com A/S
foredragsshoppen.dkSimply.com A/S
forfatterforedrag.dkSimply.com A/S
forskerforedrag.dkSimply.com A/S
frankknudsen.dkSimply.com A/S
inspiredbytech.dkSimply.com A/S
inspiretech.dkSimply.com A/S
jacobbirkler.dkSimply.com A/S
jacobpalmqvist.dkSimply.com A/S
jagoo.dkSimply.com A/S
jakobsorgenfri.dkSimply.com A/S
jakobsorgensfri.dkSimply.com A/S
jan-grarup.dkSimply.com A/S
jasonwatt.dkSimply.com A/S
jesperbove-nielsen.dkSimply.com A/S
jespertheilgaard.dkSimply.com A/S
joergenskouboe.dkSimply.com A/S
kigge-hvid.dkSimply.com A/S
kimleine.dkSimply.com A/S
klausbundgaardpovlsen.dkSimply.com A/S
konference.dkSimply.com A/S
kongerneafspeedway.dkSimply.com A/S
kristinaschoumadsen.dkSimply.com A/S
kursisten.dkPunktum dk A/S (direct)
kursuslex.dkSimply.com A/S
liveby.dkSimply.com A/S
martinaagerup.dkSimply.com A/S
meta2023.dkSimply.com A/S
meta2024.dkSimply.com A/S
michaelbrautsch.dkSimply.com A/S
michaelstoltze.dkSimply.com A/S
moedeogeventmessen.dkSimply.com A/S
morten-pape.dkSimply.com A/S
mortenddhansen.dkSimply.com A/S
mortenmunsterforedrag.dkSimply.com A/S
mødemekka.dkSimply.com A/S
nagiebkhaja.dkSimply.com A/S
naujalynge.dkSimply.com A/S
nielsbjerre-poulsen.dkSimply.com A/S
noaredington.dkSimply.com A/S
ogio.dkSimply.com A/S
olesejeriversen-foredrag.dkSimply.com A/S
ondskabenspsykologi.dkSimply.com A/S
optimeet.dkSimply.com A/S
optimeetconnect.dkSimply.com A/S
optimeetmessen.dkSimply.com A/S
opusdev.dkSimply.com A/S
opusedb.dkSimply.com A/S
opusevents.dkSimply.com A/S
opusgroup.dkSimply.com A/S
opusinvest.dkSimply.com A/S
opusit.dkSimply.com A/S
originaltalks.dkSimply.com A/S
pentus.dkSimply.com A/S
pernillefysforedrag.dkSimply.com A/S
pernilleskipper.dkSimply.com A/S
peter-kruse.dkSimply.com A/S
peterstamp.dkSimply.com A/S
petranagel.dkSimply.com A/S
pia-callesen.dkSimply.com A/S
preben-lund.dkSimply.com A/S
prebenmejer.dkSimply.com A/S
priceilive.dkSimply.com A/S
raneogsimon.dkSimply.com A/S
redseminar.dkSimply.com A/S
saraomar.dkSimply.com A/S
sibilus.dkSimply.com A/S
speakerswatch.dkSimply.com A/S
speakx.dkSimply.com A/S
steen-gade.dkSimply.com A/S
søren-østergaard.dkSimply.com A/S
tech-odense.dkSimply.com A/S
thomas-bolander.dkSimply.com A/S
thomasblachman.dkSimply.com A/S
tikkit.dkSimply.com A/S
tikko.dkSimply.com A/S
tikkolearn.dkSimply.com A/S
traderr.dkSimply.com A/S
troelsgottlieb.dkSimply.com A/S
ulrikbie.dkSimply.com A/S
victorboylindholm.dkSimply.com A/S
vindmedathenas.dkSimply.com A/S

Showing 100 of 104.

📋 WHOIS#

⏱️ Lookup Timing#

NS
45ms
A
45ms
MX
39ms
AAAA
36ms
TXT
189ms
CAA
53ms
HTTPS
36ms
TLSA
121ms
SOA
0ms
MTA-STS
69ms
DNSSEC
144ms
SRV
67ms
Total
998ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-07 15:32:28 547ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-29 21:50:48 968ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-24 20:37:29 875ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-23 19:42:58 shown 998ms 2 NS 2 A 5 MX 🔓 Insecure
2026-09-16 16:54:03 1388ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-28 01:24:31 1521ms 2 NS 2 A 5 MX 🔓 Insecure
2026-08-03 18:28:36 1206ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-25 15:26:29 1502ms 2 NS 2 A 5 MX 🔓 Insecure
2026-07-02 00:30:39 1135ms 2 NS 2 A 5 MX 🔓 Insecure
2026-06-16 20:15:40 716ms 2 NS 2 A 5 MX 🔓 Insecure
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