esb-intschool.dk

📜 Historical scan 2026-06-20 19:38:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

esb-intschool.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 31 March 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 62.171.173.250 is hosted by Contabo GmbH (AS51167) in France. Mail is handled by esbjerginternationalschool-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 48ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
62.171.173.250	7200s	vmi589344.contaboserver.net	AS51167	Contabo GmbH	62.171.128.0/18	🇫🇷 France	Lauterbourg

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	esbjerginternationalschool-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca04::f 2a01:111:f403:ca09:: 2a01:111:f403:ca09::7 52.101.68.0 52.101.68.21 52.101.68.3 52.101.73.153	mail-du0pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00403.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 → 52.98.149.152
🔶 Autoconfig	62.171.173.250

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 84ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 159ms

TXT Record
v=spf1 include:spf.protection.outlook.com a:4679.submission.antispamcloud.com a:release.antispamcloud.com -all

✉️ SPF#

Policy	Record (esb-intschool.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com a:4679.submission.antispamcloud.com a:release.antispamcloud.com -all

📨 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 2026-10-12 13:17:19

www	62.171.173.250 (AS51167) (address records, no CNAME)
www vs bare domain	Same network esb-intschool.dk: 62.171.173.250 (AS51167) www.esb-intschool.dk: 62.171.173.250 (AS51167)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

54ms

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

🏷️ SOA#

36ms

Field	Value
Serial	2026061101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-09 21:22:19

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2008-03-31
Expires	2027-03-31 (162d)

📋 WHOIS#

⏱️ Lookup Timing#

48ms

35ms

37ms

AAAA

69ms

TXT

159ms

CAA

36ms

HTTPS

44ms

TLSA

607ms

SOA

36ms

MTA-STS

41ms

DNSSEC

54ms

SRV

84ms

Total

1046ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 13:17:19	1921ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 07:59:13	1156ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 14:49:11	4561ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-18 10:17:10	9193ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 02:58:45	965ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-08 19:54:01	17584ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 19:38:14 shown	1046ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 08:15:18	1481ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 08:15:16	1468ms	2 NS 1 A 1 MX	🔒 Secure