core2020.dk

📜 Historical scan 2026-09-24 12:40:30  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

core2020.dk is a .dk domain served by 2 nameservers (lucy.ns.cloudflare.com, micah.ns.cloudflare.com). It was registered on 13 March 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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   60ms
NameserverIP addressesPTRASN / ISP
lucy.ns.cloudflare.com 108.162.192.133
172.64.32.133
173.245.58.133
2606:4700:50::adf5:3a85
2803:f800:50::6ca2:c085
2a06:98c1:50::ac40:2085		 lucy.ns.cloudflare.com
lucy.ns.cloudflare.com
lucy.ns.cloudflare.com
lucy.ns.cloudflare.com
lucy.ns.cloudflare.com
lucy.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
micah.ns.cloudflare.com 108.162.193.206
172.64.33.206
173.245.59.206
2606:4700:58::adf5:3bce
2803:f800:50::6ca2:c1ce
2a06:98c1:50::ac40:21ce		 micah.ns.cloudflare.com
micah.ns.cloudflare.com
micah.ns.cloudflare.com
micah.ns.cloudflare.com
micah.ns.cloudflare.com
micah.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

🌍
No A records found

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-15 09:00:12
wwwExists, no address
www vs bare domainNeither resolves
core2020.dk: no address
www.core2020.dk: no address
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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

157ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset

🏷️ SOA#

0ms
FieldValue
Serial2415680597
Primary NS (MNAME)lucy.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-12 19:58:59
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2020-03-13
Expires2027-03-31 (164d)

🔗 Same registrant#

44 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
amuledelse.dkPunktum dk A/S (direct)
audiguiden.dkPunktum dk A/S (direct)
auguiden.dkPunktum dk A/S (direct)
auledelse.dkPunktum dk A/S (direct)
businessviden.dkPunktum dk A/S (direct)
etietgen.dkPunktum dk A/S (direct)
eventuddannelsen.dkPunktum dk A/S (direct)
forfremtiden.dkPunktum dk A/S (direct)
hca-stx.dkPunktum dk A/S (direct)
hcastx.dkPunktum dk A/S (direct)
hg-odense.dkPunktum dk A/S (direct)
hhx-odense.dkPunktum dk A/S (direct)
hhxfyn.dkPunktum dk A/S (direct)
kaosklub.dkPunktum dk A/S (direct)
kompetencekompasset.dkPunktum dk A/S (direct)
kompetencevaekst.dkPunktum dk A/S (direct)
kompetencevækst.dkPunktum dk A/S (direct)
kurser-fyn.dkPunktum dk A/S (direct)
kurser-odense.dkPunktum dk A/S (direct)
laonline.dkPunktum dk A/S (direct)
leadigeelevpladser.dkPunktum dk A/S (direct)
lederipraksis.dkPunktum dk A/S (direct)
lederivirkeligheden.dkPunktum dk A/S (direct)
lederpraksis.dkPunktum dk A/S (direct)
ledertrainee.dkPunktum dk A/S (direct)
obuonline.dkPunktum dk A/S (direct)
odensegymnasium.dkPunktum dk A/S (direct)
offentliglederkarriere.dkPunktum dk A/S (direct)
praksisuddannelse.dkPunktum dk A/S (direct)
sprogcenter-fyn.dkPunktum dk A/S (direct)
studenterodense.dkPunktum dk A/S (direct)
teitgen.dkPunktum dk A/S (direct)
tietgenbusiness.dkPunktum dk A/S (direct)
tietgendetail.dkPunktum dk A/S (direct)
tietgenfinans.dkPunktum dk A/S (direct)
tietgenskolen.dkPunktum dk A/S (direct)
tietgenwebshop.dkPunktum dk A/S (direct)
titgen.dkPunktum dk A/S (direct)
titgenskolen.dkPunktum dk A/S (direct)
tkconline.dkPunktum dk A/S (direct)
uddannelse-fyn.dkPunktum dk A/S (direct)
uddannelser-fyn.dkPunktum dk A/S (direct)
uddannelser-odense.dkPunktum dk A/S (direct)
videncenterforfinans.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
60ms
A
46ms
MX
61ms
AAAA
66ms
TXT
198ms
CAA
41ms
HTTPS
70ms
TLSA
45ms
SOA
0ms
MTA-STS
70ms
DNSSEC
157ms
SRV
103ms
Total
525ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-15 09:00:12 444ms 2 NS 0 A 0 MX 🔒 Secure
2026-09-25 16:02:06 515ms 2 NS 0 A 0 MX 🔒 Secure
2026-09-24 12:40:30 shown 525ms 2 NS 0 A 0 MX 🔒 Secure
2026-09-08 16:04:03 1074ms 2 NS 0 A 0 MX 🔒 Secure
2026-08-31 08:49:41 397ms 2 NS 0 A 0 MX 🔒 Secure
2026-08-17 11:55:29 16644ms 2 NS 0 A 0 MX 🔒 Secure
2026-08-10 07:56:23 3462ms 2 NS 0 A 0 MX 🔒 Secure
2026-07-15 22:14:07 575ms 2 NS 0 A 0 MX 🔒 Secure
2026-06-26 21:24:06 703ms 2 NS 0 A 0 MX 🔒 Secure
2026-06-21 10:34:34 390ms 2 NS 0 A 0 MX 🔒 Secure
2026-06-16 22:26:45 359ms 2 NS 0 A 0 MX 🔒 Secure
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