klassecentret.dk

📜 Historical scan 2026-09-07 21:34:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

klassecentret.dk is a .dk domain served by 2 nameservers (ns.vordbkom.dk, ns.vordbskoler.dk). It was registered on 8 June 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.56.147.142 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by c31e2a86088b458fd6476e1fb5b903.mail.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 137ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.vordbkom.dk	131.165.202.1	ns.vordbkom.dk	AS6834 KMD A/S
ns.vordbskoler.dk	5.56.147.154	—	AS31027 GlobalConnect A/S

🌍 A Records#

1 records 112ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.56.147.142	11700s	—	AS31027	GlobalConnect A/S	5.56.144.0/20	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 121ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	c31e2a86088b458fd6476e1fb5b903.mail.outlook.com	2a01:111:f403:c902::5 2a01:111:f403:c927::6 2a01:111:f403:f908:: 2a01:111:f403:f909::b 52.101.11.10 52.101.40.0 52.101.41.28 52.101.9.24	mail-sj2pr05cu00505.inbound.protection.outlook.com mail-bn3pr0501cu00106.inbound.protection.outlook.com mail-bn1pr21cu00100.inbound.protection.outlook.com mail-bnypr03cu00203.inbound.protection.outlook.com mail-sa9pr03cu00202.inbound.protection.outlook.com mail-cy5pr03cu00300.inbound.protection.outlook.com mail-sj0pr03cu01504.inbound.protection.outlook.com mail-bl2pr02cu00400.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8
🔶 Autoconfig	5.56.147.142

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 313ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	10	2	5061	federation.messenger.msn.com

📝 TXT Records#

2 records 458ms

TXT Record
v=msv1 t=c31e2a86088b458fd6476e1fb5b903
v=spf1 include:_spf4520.spfprotect.com -all

✉️ SPF#

Policy	Record (klassecentret.dk)
-all (hard fail)	v=spf1 include:_spf4520.spfprotect.com -all

📨 DMARC#

Policy	Record (_dmarc.klassecentret.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:60f69872d8c04@dmarc.centerasecurity.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 2026-10-18 09:42:46

www	5.56.147.142 (AS31027) (address records, no CNAME)
www vs bare domain	Same network klassecentret.dk: 5.56.147.142 (AS31027) www.klassecentret.dk: 5.56.147.142 (AS31027)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

168ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2013020864
Primary NS (MNAME)	ns.vordbkom.dk
Responsible (RNAME)	hostmaster
Refresh	14400s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	900s

📋 Registration#

WHOIS fetched 2026-10-18 09:58:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-06-08
Expires	2027-06-30 (253d)

🔗 Same registrant#

82 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
10-klassecentret.dk	Punktum dk A/S (direct)
10klassecenteret.dk	Punktum dk A/S (direct)
10klassecentret.dk	Punktum dk A/S (direct)
blåeventyr.dk	DANDOMAIN A/S
bogbusvordingborg.dk	Punktum dk A/S (direct)
climabombina.dk	Punktum dk A/S (direct)
gaasetaarn-skolen.dk	Punktum dk A/S (direct)
gaasetaarns-skolen.dk	Punktum dk A/S (direct)
gaasetaarnsskolen.dk	Punktum dk A/S (direct)
gasetaarn-skolen.dk	Punktum dk A/S (direct)
gasetaarns-skolen.dk	Punktum dk A/S (direct)
gasetaarnskolen.dk	Punktum dk A/S (direct)
gasetaarnsskolen.dk	Punktum dk A/S (direct)
gasetårn-skolen.dk	Punktum dk A/S (direct)
gasetårns-skolen.dk	Punktum dk A/S (direct)
gasetårnskolen.dk	Punktum dk A/S (direct)
gasetårnsskolen.dk	Punktum dk A/S (direct)
gmonskole.dk	Punktum dk A/S (direct)
goenge-skolen.dk	Punktum dk A/S (direct)
goengeskolen.dk	Punktum dk A/S (direct)
gongeskolen.dk	Punktum dk A/S (direct)
gåsetårn-skolen.dk	Punktum dk A/S (direct)
gåsetårnskolen.dk	Punktum dk A/S (direct)
gåsetårnsskolen.dk	Punktum dk A/S (direct)
gønge-skolen.dk	Punktum dk A/S (direct)
gøngeskolen.dk	Punktum dk A/S (direct)
iselingeskolen.dk	Punktum dk A/S (direct)
kastrupskole.dk	Punktum dk A/S (direct)
kckalvehave.dk	Punktum dk A/S (direct)
klasse-centeret.dk	Punktum dk A/S (direct)
klasse-centret.dk	Punktum dk A/S (direct)
klassecenteret.dk	Punktum dk A/S (direct)
klosternakkeskolen.dk	Punktum dk A/S (direct)
kulsbjerg-skolen.dk	Punktum dk A/S (direct)
kulsbjergskole.dk	Punktum dk A/S (direct)
kulsbjergskolen.dk	Punktum dk A/S (direct)
kulturstroemmen.dk	Punktum dk A/S (direct)
kulturstrømmen.dk	Punktum dk A/S (direct)
lundbybibliotek.dk	Punktum dk A/S (direct)
marienbergskole.dk	Punktum dk A/S (direct)
masnedoefortet.dk	Punktum dk A/S (direct)
moenbibliotek.dk	Punktum dk A/S (direct)
moenkom.dk	Punktum dk A/S (direct)
moenkommune.dk	Punktum dk A/S (direct)
møn.dk	Punktum dk A/S (direct)
mønskole.dk	Punktum dk A/S (direct)
nyvordingborg.dk	Punktum dk A/S (direct)
nyvordingborgkommune.dk	Punktum dk A/S (direct)
ostersocenter.dk	Punktum dk A/S (direct)
panteren.dk	Punktum dk A/S (direct)
parcelhusgrunde.dk	Punktum dk A/S (direct)
praestoeskole.dk	Punktum dk A/S (direct)
praestoskole.dk	Punktum dk A/S (direct)
prastoeskole.dk	Punktum dk A/S (direct)
prastohavn.dk	Punktum dk A/S (direct)
prastoskole.dk	Punktum dk A/S (direct)
præstøskole.dk	Punktum dk A/S (direct)
skolenetvordingborg.dk	Punktum dk A/S (direct)
sprogkufferten.dk	Punktum dk A/S (direct)
svendgoenge-skolen.dk	Punktum dk A/S (direct)
svendgoengeskolen.dk	Punktum dk A/S (direct)
svendgonge-skolen.dk	Punktum dk A/S (direct)
svendgongeskolen.dk	Punktum dk A/S (direct)
svendgøngeskolen.dk	Punktum dk A/S (direct)
vildevordingborg.dk	Punktum dk A/S (direct)
vintersboelleskole.dk	Punktum dk A/S (direct)
vkdt.dk	Punktum dk A/S (direct)
vordbkom.dk	Punktum dk A/S (direct)
vordbskoler.dk	Punktum dk A/S (direct)
vordingborg-centret.dk	Punktum dk A/S (direct)
vordingborg-skoler.dk	Punktum dk A/S (direct)
vordingborg.dk	Punktum dk A/S (direct)
vordingborgambassador.dk	Punktum dk A/S (direct)
vordingborgbibliotek.dk	Punktum dk A/S (direct)
vordingborgbibliotekerne.dk	Punktum dk A/S (direct)
vordingborgcentret.dk	Punktum dk A/S (direct)
vordingborgkommune.dk	Punktum dk A/S (direct)
vordingborgskole.dk	Punktum dk A/S (direct)
vordingborgskolenet.dk	Punktum dk A/S (direct)
vordingborgskoler.dk	Punktum dk A/S (direct)
vordingborgskolerne.dk	Punktum dk A/S (direct)
vorskoler.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

137ms

112ms

121ms

AAAA

139ms

TXT

458ms

CAA

131ms

HTTPS

155ms

TLSA

296ms

SOA

0ms

MTA-STS

136ms

DNSSEC

168ms

SRV

313ms

Total

4399ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 09:42:46	2893ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 05:32:20	4477ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-12 02:11:24	4802ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-10 23:46:12	2866ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 17:28:04	4333ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 16:33:58	626ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 16:29:44	3071ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 15:14:29	2256ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 14:59:55	852ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 14:05:27	1096ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 16:17:51	3109ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-15 19:44:35	961ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-09 00:01:53	2285ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-07 21:34:28 shown	4399ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 20:51:45	1996ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-29 02:11:09	3152ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 21:20:16	975ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-22 22:38:42	1234ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-19 21:33:43	3904ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-17 13:01:22	1206ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-14 19:32:49	2932ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 23:34:31	3403ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-06 18:14:04	1421ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-02 22:11:30	12766ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-28 15:30:29	9888ms	2 NS 1 A 1 MX	🔒 Secure