udemo.dk

📜 Historical scan 2026-06-18 00:35:15 · ← 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 62ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.cscdns.net	156.154.130.100 2610:a1:1022::100	spdns3.cscdns.net ns1.ascio.net	AS12008 Vercara, LLC AS12008 Vercara, LLC
dns2.cscdns.net	156.154.131.100 2610:a1:1023::100	indom80.indomco.hk indom20.indomco.net	AS12008 Vercara, LLC AS12008 Vercara, LLC

🌍 A Records#

2 records 56ms

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

📧 MX Records#

1 records 172ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	udemo-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::8 2a01:111:f403:ca09::1 2a01:111:f403:ca09::d 52.101.68.8 52.101.73.12 52.101.73.153 52.101.73.8	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 52.97.229.216
🔶 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 134ms

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

📝 TXT Records#

2 records 188ms

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#

201ms

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

🏷️ SOA#

66ms

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 (344d)

🔗 Same registrant#

23 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
centrigo.dk	Eurodns S.A
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#

62ms

56ms

172ms

AAAA

58ms

TXT

188ms

CAA

66ms

HTTPS

58ms

TLSA

496ms

SOA

66ms

MTA-STS

42ms

DNSSEC

201ms

SRV

134ms

Total

1190ms

🕐 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	1193ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 00:35:15 shown	1190ms	2 NS 2 A 1 MX	🔓 Insecure