tjeleefterskole.dk DNS records

🖥️ Nameservers2 records 346ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 326ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.166.22.221	3600s	—	AS14061	DigitalOcean, LLC	188.166.0.0/16	🇳🇱 The Netherlands	Amsterdam

📧 MX Records1 records 273ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	tjeleefterskole-dk.mail.protection.outlook.com	2a01:111:f403:ca09::2 2a01:111:f403:ca09::3 2a01:111:f403:ca09::5 2a01:111:f403:ca09::8 52.101.68.21 52.101.68.29 52.101.68.32 52.101.73.153	mail-am0pr83cu00402.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 698ms

TXT Record
facebook-domain-verification=5cxg7a4rvovqz9dvrc1rln2jaib67
MS=ms86194304
v=spf1 mx ip4:77.233.237.72 ip4:130.226.154.162 ip4:188.166.22.221 ip4:20.105.135.12 include:spf.protection.outlook.com include:o._spf.hostedsepo.dk -all

✉️ SPF

Policy	Record (tjeleefterskole.dk)
-all (hard fail)	v=spf1 mx ip4:77.233.237.72 ip4:130.226.154.162 ip4:188.166.22.221 ip4:20.105.135.12 include:spf.protection.outlook.com include:o._spf.hostedsepo.dk -all

📨 DMARC

Policy	Record (_dmarc.tjeleefterskole.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc-feedback@educant.dk; aspf=r

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records3 records 371ms

Flags	Tag	Value
0	issue	digicert.com
0	issue	letsencrypt.org
0	issue	rapidssl.com

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.tjeleefterskole.dk	ac9106c3-b8f6-41e4-9e47-acf99c3eb912.acme.educant.dk
TXT	ac9106c3-b8f6-41e4-9e47-acf99c3eb912.acme.educant.dk	IxcGMRXkUjfbWnPqyDi0meFkQa3xsVYObMxcYvMswGQ

🔗 TLSA / DANE

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

🔐 DNSSEC582ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081401
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

346ms

A

326ms

MX

273ms

AAAA

356ms

TXT

698ms

CAA

371ms

HTTPS

287ms

TLSA

343ms

SOA

0ms

MTA-STS

462ms

DNSSEC

582ms

SRV

332ms

Total

4437ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-14 20:41:35	4437ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 19:00:32	17236ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 23:39:54	9015ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-07 04:52:02	1348ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 22:10:42	635ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 20:09:40	806ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 10:31:13	696ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 00:45:17	1435ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 20:17:11	608ms	2 NS 1 A 1 MX	🔒 Secure	View