classteam.dk

📜 Historical scan 2026-09-11 01:35:24 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

classteam.dk is a .dk domain served by 2 nameservers (cortney.ns.cloudflare.com, eric.ns.cloudflare.com). It was registered on 10 December 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.62.212 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no 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 107ms

Nameserver	IP addresses	PTR	ASN / 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#

2 records 118ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.62.212	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.139.87	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 115ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:3ed4	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:8b57	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 209ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.62.212,172.67.139.87 ech=AEX+DQBBGwAgACAMWwufpVMwBvNnybbLXwcl83lDeOkFYI9kR3gB/+chOwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:3ed4,2606:4700:3033::ac43:8b57

📝 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 2026-10-07 22:11:14

www	104.21.62.212 172.67.139.87 2606:4700:3033::6815:3ed4 2606:4700:3033::ac43:8b57 (AS13335) (address records, no CNAME)
www vs bare domain	Same network classteam.dk: 104.21.62.212 172.67.139.87 2606:4700:3033::6815:3ed4 2606:4700:3033::ac43:8b57 (AS13335) www.classteam.dk: 104.21.62.212 172.67.139.87 2606:4700:3033::6815:3ed4 2606:4700:3033::ac43:8b57 (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.classteam.dk	ox-UaOy1s5kM8R0tv-LFe2TTCpHnd_--LHJkmDaegSk
TXT	_acme-challenge.classteam.dk	uuOe7PPXlR0YncBpd43_8dqhJncz1mAjUw06S1RpjJw

🔗 TLSA / DANE#

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

🔐 DNSSEC#

209ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2414567280
Primary NS (MNAME)	cortney.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 11:28:07

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-12-10
Expires	2026-12-31 (71d)

🔗 Same registrant#

205 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).

Domain	Registrar
0klasse.dk	Eurodns S.A
0klassefaget.dk	Eurodns S.A
1094.dk	Punktum dk A/S (direct)
5emner.dk	Punktum dk A/S (direct)
5nyeemner.dk	Punktum dk A/S (direct)
ad-dev.dk	Punktum dk A/S (direct)
ad-prod.dk	Punktum dk A/S (direct)
ad-staging.dk	Punktum dk A/S (direct)
ad-test.dk	Punktum dk A/S (direct)
afgangsprøver.dk	Eurodns S.A
aigo.dk	Punktum dk A/S (direct)
alinea-web.dk	Punktum dk A/S (direct)
alinea.dk	Punktum dk A/S (direct)
alineaakademi.dk	Punktum dk A/S (direct)
alineadigital.dk	Punktum dk A/S (direct)
alvids.dk	Punktum dk A/S (direct)
aschehoug.dk	Punktum dk A/S (direct)
athene.dk	Punktum dk A/S (direct)
bingoweb.dk	Punktum dk A/S (direct)
biologifocus.dk	Punktum dk A/S (direct)
bliv-klog.dk	Punktum dk A/S (direct)
blivklog.dk	Punktum dk A/S (direct)
bog.dk	Punktum dk A/S (direct)
bookguide.dk	Punktum dk A/S (direct)
bornsliv.dk	Punktum dk A/S (direct)
camptysk.dk	Punktum dk A/S (direct)
carlsen.dk	Punktum dk A/S (direct)
clio.dk	Eurodns S.A
cliocloud.dk	Eurodns S.A
clioevalueringsopgaver.dk	Eurodns S.A
clionoc.dk	Eurodns S.A
clioonline.dk	Eurodns S.A
cliopulten.dk	Eurodns S.A
clioskole.dk	Eurodns S.A
clioskyen.dk	Eurodns S.A
cliotræning.dk	Eurodns S.A
dansk-historie.dk	Eurodns S.A
dansk-skolen.dk	Eurodns S.A
danskfessor.dk	Punktum dk A/S (direct)
dansklandskabet.dk	Punktum dk A/S (direct)
danskskole.dk	Eurodns S.A
danskskolen.dk	Eurodns S.A
dansktime.dk	Eurodns S.A
danskunivers.dk	Punktum dk A/S (direct)
denførstelæsning.dk	Punktum dk A/S (direct)
didaktiker.dk	Punktum dk A/S (direct)
differentiering.dk	Punktum dk A/S (direct)
digitalfaget.dk	Eurodns S.A
dmiklassematematik.dk	Punktum dk A/S (direct)
dmimatematik.dk	Punktum dk A/S (direct)
dmmatematik.dk	Punktum dk A/S (direct)
easyreaders.dk	Punktum dk A/S (direct)
edspace.dk	Punktum dk A/S (direct)
edulab.dk	Punktum dk A/S (direct)
elevlab.dk	Punktum dk A/S (direct)
engelskfaget.dk	Eurodns S.A
engelskfessor.dk	Punktum dk A/S (direct)
engelskskoleordbog.dk	Punktum dk A/S (direct)
engelskunivers.dk	Punktum dk A/S (direct)
erdutalblind.dk	Punktum dk A/S (direct)
eskolebog.dk	Punktum dk A/S (direct)
europas-historie.dk	Eurodns S.A
faerdighedsproeven.dk	Punktum dk A/S (direct)
familiefessor.dk	Punktum dk A/S (direct)
fesor.dk	Punktum dk A/S (direct)
fessor.dk	Punktum dk A/S (direct)
fessordysten.dk	Punktum dk A/S (direct)
fessorsaktiviteter.dk	Punktum dk A/S (direct)
fessorsfamilie.dk	Punktum dk A/S (direct)
fessorskurser.dk	Punktum dk A/S (direct)
fessorstalkuffert.dk	Punktum dk A/S (direct)
filmabc.dk	Punktum dk A/S (direct)
fleksbog.dk	Punktum dk A/S (direct)
fleksbogen.dk	Punktum dk A/S (direct)
flexbog.dk	Punktum dk A/S (direct)
fmb.dk	Punktum dk A/S (direct)
foraeldrematematik.dk	Punktum dk A/S (direct)
forfatter.dk	Punktum dk A/S (direct)
forlagetturbo.dk	Punktum dk A/S (direct)
forlagmallingbeck.dk	Punktum dk A/S (direct)
forlagsliv.dk	Punktum dk A/S (direct)
formatnet.dk	Punktum dk A/S (direct)
fotomat.dk	Punktum dk A/S (direct)
franskfessor.dk	Punktum dk A/S (direct)
fysik-kemi-timen.dk	Eurodns S.A
fysik-kemifokus.dk	Punktum dk A/S (direct)
fysiktalent.dk	Punktum dk A/S (direct)
gekko-engelsk.dk	Punktum dk A/S (direct)
gekko-fransk.dk	Punktum dk A/S (direct)
gekko-tysk.dk	Punktum dk A/S (direct)
gekkotysk.dk	Punktum dk A/S (direct)
geografifocus.dk	Punktum dk A/S (direct)
geografitimen.dk	Eurodns S.A
gymnasie-klar.dk	Punktum dk A/S (direct)
gymnasie-portalen.dk	Punktum dk A/S (direct)
gymnasieklar.dk	Punktum dk A/S (direct)
haandvaerkdesignfaget.dk	Eurodns S.A
historieunivers.dk	Punktum dk A/S (direct)
håndværkdesignfaget.dk	Eurodns S.A
i-skolebogen.dk	Punktum dk A/S (direct)

Showing 100 of 205.

📋 WHOIS#

⏱️ Lookup Timing#

107ms

118ms

134ms

AAAA

115ms

TXT

377ms

CAA

135ms

HTTPS

209ms

TLSA

455ms

SOA

0ms

MTA-STS

115ms

DNSSEC

209ms

SRV

205ms

Total

1788ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 22:11:14	454ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-03 08:19:10	597ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-02 08:18:48	607ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 07:58:41	478ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-28 06:52:56	782ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-26 06:15:34	1755ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-25 06:05:16	607ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-17 13:39:19	1154ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-11 01:35:24 shown	1788ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-04 16:18:04	910ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-02 17:54:55	696ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-24 20:50:10	940ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 21:05:57	477ms	2 NS 2 A 0 MX	🔓 Insecure