udemo.dk

📜 Historical scan 2026-06-21 05:33:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

udemo.dk is a .dk domain served by 2 nameservers (dns1.cscdns.net, dns2.cscdns.net). It was registered on 24 September 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 165.160.13.20 is hosted by Corporation Service Company (AS19574) in United States. Mail is handled by udemo-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 61ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.cscdns.net	156.154.130.100 2610:a1:1022::100	ns2.euro909.com spdns3.cscdns.net	AS12008 Vercara, LLC AS12008 Vercara, LLC
dns2.cscdns.net	156.154.131.100 2610:a1:1023::100	ns2.netnames.net ns2.ascio.net	AS12008 Vercara, LLC AS12008 Vercara, LLC

🌍 A Records#

2 records 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
165.160.13.20	14400s	—	AS19574	Corporation Service Company	165.160.12.0/22	🇺🇸 United States	—
165.160.15.20	14400s	—	AS19574	Corporation Service Company	165.160.12.0/22	🇺🇸 United States	—

📧 MX Records#

1 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	udemo-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09::2 2a01:111:f403:ca09::7 2a01:111:f403:ca09::b 52.101.68.15 52.101.68.18 52.101.73.1 52.101.73.28	mail-db7pr03cu00601.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.104.116.40
🔶 Autoconfig	165.160.15.20

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 79ms

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

📝 TXT Records#

2 records 263ms

TXT Record
MS=ms45093175
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (udemo.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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 2026-10-10 04:48:49

www	165.160.13.20 165.160.15.20 (AS19574) (address records, no CNAME)
www vs bare domain	Same network udemo.dk: 165.160.13.20 165.160.15.20 (AS19574) www.udemo.dk: 165.160.13.20 165.160.15.20 (AS19574)
Wildcard	Yes: any name under the zone resolves

🔎 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#

70ms

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

🏷️ SOA#

55ms

Field	Value
Serial	2019092304
Primary NS (MNAME)	dns1.cscdns.net
Responsible (RNAME)	hostmaster@cscdns.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	14400s

📋 Registration#

WHOIS fetched 2026-10-16 21:36:40

Field	Value
Registrar	CSC Digital Brand Service, Inc
Registered	2019-09-24
Expires	2027-09-30 (345d)

🔗 Same registrant#

22 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
bhapplications.dk	CSC Digital Brand Service, Inc
f-t.dk	CSC Digital Brand Service, Inc
franck-tobiesen.dk	CSC Digital Brand Service, Inc
hosthouse.dk	CSC Digital Brand Service, Inc
it-craft.dk	CSC Digital Brand Service, Inc
itholding.dk	CSC Digital Brand Service, Inc
kc-host.dk	CSC Digital Brand Service, Inc
kcrr.dk	CSC Digital Brand Service, Inc
nonfederation-usermigration.dk	CSC Digital Brand Service, Inc
odinsbrygge.dk	CSC Digital Brand Service, Inc
outforce.dk	CSC Digital Brand Service, Inc
performancedoctor.dk	CSC Digital Brand Service, Inc
premiumleasing.dk	CSC Digital Brand Service, Inc
sdkgroup.dk	CSC Digital Brand Service, Inc
selectedcarcollection.dk	CSC Digital Brand Service, Inc
selfproperty.dk	CSC Digital Brand Service, Inc
sqlperformancedoctor.dk	CSC Digital Brand Service, Inc
teneo.dk	CSC Digital Brand Service, Inc
unit-it.dk	CSC Digital Brand Service, Inc
unitcloud.dk	CSC Digital Brand Service, Inc
ustc.dk	CSC Digital Brand Service, Inc
wingman-kultur.dk	CSC Digital Brand Service, Inc

📋 WHOIS#

⏱️ Lookup Timing#

61ms

58ms

67ms

AAAA

56ms

TXT

263ms

CAA

55ms

HTTPS

56ms

TLSA

642ms

SOA

55ms

MTA-STS

55ms

DNSSEC

70ms

SRV

79ms

Total

1193ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 20:17:18	949ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-08 05:57:57	1037ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-03 00:55:31	10009ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-27 18:37:17	1178ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 17:31:46	997ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 21:30:49	1725ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 21:22:12	916ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 05:33:01 shown	1193ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 00:35:15	1190ms	2 NS 2 A 1 MX	🔓 Insecure