fessorkurser.dk

📜 Historical scan 2026-06-17 10:02:35  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fessorkurser.dk is a .dk domain served by 2 nameservers (cortney.ns.cloudflare.com, eric.ns.cloudflare.com). It was registered on 27 May 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is DNSSEC-signed but currently fails validation, 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   32ms
NameserverIP addressesPTRASN / ISP
cortney.ns.cloudflare.com 108.162.192.87
172.64.32.87
173.245.58.87
2606:4700:50::adf5:3a57
2803:f800:50::6ca2:c057
2a06:98c1:50::ac40:2057		 cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
eric.ns.cloudflare.com 108.162.193.112
172.64.33.112
173.245.59.112
2606:4700:58::adf5:3b70
2803:f800:50::6ca2:c170
2a06:98c1:50::ac40:2170		 eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.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 2026-10-18 14:36:38
wwwNXDOMAIN
www vs bare domainNeither resolves
fessorkurser.dk: no address
www.fessorkurser.dk: no address
WildcardNo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

97ms
CheckResult
Validation Status⚠️ Bogus
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsbroken trust chain resolving 'fessorkurser.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

29ms
FieldValue
Serial2403819087
Primary NS (MNAME)cortney.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-21 23:01:57
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2015-05-27
Expires2027-05-31 (219d)

🔗 Same registrant#

254 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
0klasse.dkEurodns S.A
0klassefaget.dkEurodns S.A
1094.dkPunktum dk A/S (direct)
5emner.dkPunktum dk A/S (direct)
5nyeemner.dkPunktum dk A/S (direct)
ad-dev.dkPunktum dk A/S (direct)
ad-prod.dkPunktum dk A/S (direct)
ad-staging.dkPunktum dk A/S (direct)
ad-test.dkPunktum dk A/S (direct)
afgangsprøver.dkEurodns S.A
aigo.dkPunktum dk A/S (direct)
alinea-web.dkPunktum dk A/S (direct)
alinea.dkPunktum dk A/S (direct)
alineaakademi.dkPunktum dk A/S (direct)
alineadigital.dkPunktum dk A/S (direct)
alvids.dkPunktum dk A/S (direct)
aschehoug.dkPunktum dk A/S (direct)
athene.dkPunktum dk A/S (direct)
bingoweb.dkPunktum dk A/S (direct)
biologifaget.dkEurodns S.A
biologifocus.dkPunktum dk A/S (direct)
bliv-klog.dkPunktum dk A/S (direct)
blivklog.dkPunktum dk A/S (direct)
boegertildrenge.dkPunktum dk A/S (direct)
bog.dkPunktum dk A/S (direct)
bogdk.dkDANDOMAIN A/S
bookguide.dkPunktum dk A/S (direct)
bornsliv.dkPunktum dk A/S (direct)
campfransk.dkPunktum dk A/S (direct)
campmat.dkPunktum dk A/S (direct)
campstavning.dkPunktum dk A/S (direct)
camptysk.dkPunktum dk A/S (direct)
carlsen.dkPunktum dk A/S (direct)
carlsencomics.dkPunktum dk A/S (direct)
carlsenpuls.dkPunktum dk A/S (direct)
chrisanderson.dkPunktum dk A/S (direct)
classteam.dkPunktum dk A/S (direct)
clio.dkEurodns S.A
cliocloud.dkEurodns S.A
clioevalueringsopgaver.dkEurodns S.A
clionoc.dkEurodns S.A
clioonline.dkEurodns S.A
cliopulten.dkEurodns S.A
clioskole.dkEurodns S.A
clioskyen.dkEurodns S.A
cliotræning.dkEurodns S.A
dansk-historie.dkEurodns S.A
dansk-skolen.dkEurodns S.A
danskfessor.dkPunktum dk A/S (direct)
dansklandskabet.dkPunktum dk A/S (direct)
danskskole.dkEurodns S.A
danskskolen.dkEurodns S.A
dansktime.dkEurodns S.A
danskunivers.dkPunktum dk A/S (direct)
denførstelæsning.dkPunktum dk A/S (direct)
didaktiker.dkPunktum dk A/S (direct)
differentiering.dkPunktum dk A/S (direct)
digitalbook.dkPunktum dk A/S (direct)
digitalfaget.dkEurodns S.A
dmiklassematematik.dkPunktum dk A/S (direct)
dmimatematik.dkPunktum dk A/S (direct)
dmmatematik.dkPunktum dk A/S (direct)
dragonball.dkPunktum dk A/S (direct)
e-bookstore.dkPunktum dk A/S (direct)
easyreaders.dkPunktum dk A/S (direct)
edspace.dkPunktum dk A/S (direct)
edulab.dkPunktum dk A/S (direct)
elevlab.dkPunktum dk A/S (direct)
engelskfaget.dkEurodns S.A
engelskfessor.dkPunktum dk A/S (direct)
engelskskoleordbog.dkPunktum dk A/S (direct)
engelskunivers.dkPunktum dk A/S (direct)
erdugymnasieklar.dkPunktum dk A/S (direct)
erdutalblind.dkPunktum dk A/S (direct)
eskolebog.dkPunktum dk A/S (direct)
europas-historie.dkEurodns S.A
faerdighedsproeven.dkPunktum dk A/S (direct)
familiefessor.dkPunktum dk A/S (direct)
fesor.dkPunktum dk A/S (direct)
fessor.dkPunktum dk A/S (direct)
fessordm.dkPunktum dk A/S (direct)
fessordyst.dkPunktum dk A/S (direct)
fessordysten.dkPunktum dk A/S (direct)
fessorinspiration.dkPunktum dk A/S (direct)
fessorsaktiviteter.dkPunktum dk A/S (direct)
fessorsfamilie.dkPunktum dk A/S (direct)
fessorskurser.dkPunktum dk A/S (direct)
fessorslounge.dkPunktum dk A/S (direct)
fessorstalkuffert.dkPunktum dk A/S (direct)
filmabc.dkPunktum dk A/S (direct)
fleksbog.dkPunktum dk A/S (direct)
fleksbogen.dkPunktum dk A/S (direct)
flexbog.dkPunktum dk A/S (direct)
fmb.dkPunktum dk A/S (direct)
foraeldrematematik.dkPunktum dk A/S (direct)
forfatter.dkPunktum dk A/S (direct)
forlagetturbo.dkPunktum dk A/S (direct)
forlagmallingbeck.dkPunktum dk A/S (direct)
forlagsliv.dkPunktum dk A/S (direct)
formatmatematik.dkPunktum dk A/S (direct)

Showing 100 of 254.

📋 WHOIS#

⏱️ Lookup Timing#

NS
32ms
A
24ms
MX
35ms
AAAA
28ms
TXT
2125ms
CAA
30ms
HTTPS
25ms
TLSA
49ms
SOA
29ms
MTA-STS
50ms
DNSSEC
97ms
SRV
0ms
Total
2498ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-25 16:01:04 482ms 2 NS 0 A 0 MX 🔓 Insecure
2026-09-20 22:19:51 1064ms 2 NS 0 A 0 MX 🔓 Insecure
2026-09-13 20:50:22 1130ms 2 NS 0 A 0 MX 🔓 Insecure
2026-09-06 16:47:09 669ms 2 NS 0 A 0 MX 🔓 Insecure
2026-09-06 15:20:19 9353ms 2 NS 0 A 0 MX 🔓 Insecure
2026-08-26 13:27:09 1276ms 2 NS 0 A 0 MX 🔓 Insecure
2026-07-17 16:38:36 9123ms 2 NS 0 A 0 MX 🔓 Insecure
2026-07-08 14:56:25 734ms 2 NS 0 A 0 MX 🔓 Insecure
2026-07-06 09:33:48 740ms 2 NS 0 A 0 MX 🔓 Insecure
2026-07-04 14:30:08 1855ms 2 NS 0 A 0 MX ❓ Unknown
2026-06-17 10:02:35 shown 2498ms 2 NS 0 A 0 MX ⚠️ Bogus
dhd.dk [/] search Domains, Hosts & DNS — .dk zone