udemo.dk DNS records

🖥️ Nameservers2 records 43ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.cscdns.net	156.154.130.100 2610:a1:1022::100	pdns1.cscdns.net indom130.indomco.org	AS12008 Vercara, LLC AS12008 Vercara, LLC
dns2.cscdns.net	156.154.131.100 2610:a1:1023::100	ns2.ascio.net ns3.euro909.com	AS12008 Vercara, LLC AS12008 Vercara, LLC

🌍 A Records2 records 50ms

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 Records1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	udemo-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca04::f 2a01:111:f403:ca09::7 2a01:111:f403:ca09::9 52.101.68.27 52.101.68.36 52.101.73.1 52.101.73.24	mail-db6pr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as8pr05cu00300.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 → 40.104.116.24
🔶 Autoconfig	165.160.13.20

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 105ms

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

📝 TXT Records2 records 339ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC9065ms

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

🏷️ SOA41ms

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

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

43ms

A

50ms

MX

39ms

AAAA

45ms

TXT

339ms

CAA

56ms

HTTPS

41ms

TLSA

485ms

SOA

41ms

MTA-STS

80ms

DNSSEC

9065ms

SRV

105ms

Total

10009ms

🕐 Scan History

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