10klassecentret.dk

Records from scan: 2026-10-13 01:07:37 · 4020ms total · last checked 2026-10-16 05:00 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

10klassecentret.dk is a .dk domain served by 2 nameservers (ns.vordbkom.dk, ns.vordbskoler.dk). It was registered on 29 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 10klassecentret-dk.mail.protection.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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 119ms

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 147ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.56.147.142	900s	—	AS31027	GlobalConnect A/S	5.56.144.0/20	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 118ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	10klassecentret-dk.mail.protection.outlook.com	2a01:111:f403:ca21::10 2a01:111:f403:ca21::8 2a01:111:f403:ca21::e 2a01:111:f403:ca38::8 52.101.181.156 52.101.209.31 52.101.68.27 52.101.91.153	mail-matpr05cu00100.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-matpr04cu00101.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 → 52.98.154.136
🔶 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 439ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 382ms

TXT Record
MS=ms15663557
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (10klassecentret.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.10klassecentret.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#

checked 2026-10-13 01:07:38

www	5.56.147.142 (AS31027) (address records, no CNAME)
www vs bare domain	Same network 10klassecentret.dk: 5.56.147.142 (AS31027) www.10klassecentret.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#

242ms

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

🏷️ SOA#

168ms

Field	Value
Serial	20130903
Primary NS (MNAME)	ns.vordbkom.dk
Responsible (RNAME)	hostmaster
Refresh	14400s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	900s

📋 Registration#

WHOIS fetched 2026-10-10 23:22:11

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-06-29
Expires	2027-06-30 (256d)

📋 WHOIS#

⏱️ Lookup Timing#

119ms

147ms

118ms

AAAA

138ms

TXT

382ms

CAA

135ms

HTTPS

152ms

TLSA

218ms

SOA

168ms

MTA-STS

151ms

DNSSEC

242ms

SRV

439ms

Total

4020ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 01:07:37 shown	4020ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-12 00:36:37	1368ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-10 23:04:37	1311ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-07 20:20:54	2127ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 15:56:58	1396ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 15:49:29	1563ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 15:32:23	3628ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 13:45:45	1300ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 13:36:17	3007ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 12:53:50	2317ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 01:03:39	1119ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-17 15:32:09	3698ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-10 14:37:57	2134ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-06 22:08:11	2980ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 04:58:00	2211ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-29 08:59:47	1408ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 17:03:09	904ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-23 04:09:58	3248ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-22 03:56:27	6843ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 02:23:42	6320ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-17 22:03:42	3840ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-16 09:01:16	4194ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 22:07:33	5263ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-07 02:34:09	2208ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-03 13:34:47	10008ms	2 NS 1 A 1 MX	🔒 Secure