10klassecentret.dk DNS records

🖥️ Nameservers2 records 118ms

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 Records1 records 131ms

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

📧 MX Records1 records 119ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	10klassecentret-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::1 2a01:111:f403:ca09::20 2a01:111:f403:ca48::8 52.101.103.137 52.101.103.143 52.101.73.12 52.101.73.6	mail-db4pr02cu00406.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.104.116.24
🔶 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 Records1 records 182ms

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

📝 TXT Records2 records 411ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC277ms

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

🏷️ SOA0ms

Field	Value
Serial	20130887
Primary NS (MNAME)	ns.vordbkom.dk
Responsible (RNAME)	hostmaster
Refresh	14400s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	900s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

118ms

A

131ms

MX

119ms

AAAA

107ms

TXT

411ms

CAA

122ms

HTTPS

130ms

TLSA

740ms

SOA

0ms

MTA-STS

168ms

DNSSEC

277ms

SRV

182ms

Total

2211ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 04:58:00	2211ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-29 08:59:47	1408ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-25 17:03:09	904ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 04:09:58	3248ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-22 03:56:27	6843ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 02:23:42	6320ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 22:03:42	3840ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 09:01:16	4194ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 22:07:33	5263ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 02:34:09	2208ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-03 13:34:47	10008ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 23:14:58	2664ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 21:44:51	17464ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-20 09:17:35	1394ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 01:44:36	3896ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-14 03:18:48	2189ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 22:54:38	10447ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-10 11:08:55	25300ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-09 03:10:31	2197ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 12:44:58	1129ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 10:37:53	1130ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 23:34:42	3896ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 22:48:23	904ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 22:35:02	1157ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 12:33:51	1656ms	2 NS 1 A 1 MX	🔒 Secure	View