sail2learn.dk

📜 Historical scan 2026-07-31 01:27:53 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sail2learn.dk is a .dk domain served by 5 nameservers (ns1pri.webhosting.dk, ns2.mywebtonet.com, ns2.webhosting.dk and 2 more). It was registered on 27 June 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.250.160.51 is hosted by Cibicom A/S (AS3342) in Denmark. Mail is handled by sail2learn-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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#

5 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1pri.webhosting.dk	157.250.160.80	ns1pri.webhosting.dk	AS3342 Cibicom A/S
ns2.mywebtonet.com	157.250.163.66	ns2.mywebtonet.com	AS3342 Cibicom A/S
ns2.webhosting.dk	157.250.163.65	ns2.webhosting.dk	AS3342 Cibicom A/S
ns3.webhosting.dk	2a01:4f9:c010:7e3d::1 95.217.166.205	— ns3.webhosting.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns7.webhosting.dk	159.69.216.38 2a01:4f8:1c0c:6cd6::1	ns7.webhosting.dk —	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
157.250.160.51	600s	webhotel31.webhosting.dk	AS3342	Cibicom A/S	157.250.160.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	sail2learn-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::5 2a01:111:f403:ca04::f 2a01:111:f403:ca09::8 52.101.68.29 52.101.73.12 52.101.73.22 52.101.73.8	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 40.101.112.129
🔶 Autoconfig	157.250.160.51

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 335ms

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

✉️ SPF#

Policy	Record (sail2learn.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.sail2learn.dk)
p=none (monitor only)	v=DMARC1;p=none;

📬 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 2026-10-11 01:03:32

www	157.250.160.51 (AS3342) (address records, no CNAME)
www vs bare domain	Same network sail2learn.dk: 157.250.160.51 (AS3342) www.sail2learn.dk: 157.250.160.51 (AS3342)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records 1296ms

Service / Owner	Type	Cert association
HTTPS _443._tcp.sail2learn.dk	DANE-EE · SPKI · SHA-256	948308B5C1C3B22152047BCB270C25C2…

🔐 DNSSEC#

120ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	3009021707
Primary NS (MNAME)	ns1pri.webhosting.dk
Responsible (RNAME)	hostmaster@webhosting.dk
Refresh	21600s
Retry	3600s
Expire	14515200s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-17 01:21:21

Field	Value
Registrar	WEBHOSTING A/S
Registered	2026-06-27
Expires	2027-06-26 (252d)

🔗 Same registrant#

2 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
apartments-frb.dk	WEBHOSTING A/S
glk161.dk	WEBHOSTING A/S

📋 WHOIS#

⏱️ Lookup Timing#

30ms

40ms

35ms

AAAA

42ms

TXT

335ms

CAA

34ms

HTTPS

38ms

TLSA

1296ms

SOA

0ms

MTA-STS

88ms

DNSSEC

120ms

SRV

266ms

Total

10406ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-22 18:20:11	860ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-19 13:39:05	1307ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-10 12:19:49	1380ms	5 NS 1 A 1 MX	🔓 Insecure
2026-07-31 01:27:53 shown	10406ms	5 NS 1 A 1 MX	🔓 Insecure
2026-06-28 23:18:43	980ms	5 NS 1 A 1 MX	🔓 Insecure
2026-06-24 02:21:19	1168ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 16:54:11	2100ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 11:00:16	1400ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 08:19:43	3210ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 03:32:39	632ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 12:11:15	1050ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 19:40:39	1877ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 21:55:09	1896ms	0 NS 0 A 0 MX	❓ Unknown