udemy.org - robtex.com
udemy.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 217.19.248.132🇬🇧 SAFENAMES-AS217.19.248.0/24 Safenames Datacentre | ||||||
| PTR | redirect.idp365.net | ||||||
| NS | dns1.idp365.net ⭐ | ||||||
| A | 2400:cb00:2049:1::a29f:1b83🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.27.131Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dns1.idp365.net | ||||||
| NS | dns2.idp365.net | ||||||
| A | 2400:cb00:2049:1::a29f:3003🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.48.3Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dns2.idp365.net | ||||||
| NS | dns3.idp365.net | ||||||
| A | 2400:cb00:2049:1::a29f:31fe🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.49.254Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dns3.idp365.net | ||||||
| MX | mail.idp365.net ⭐ | ||||||
| A | 217.19.248.131🇬🇧 SAFENAMES-AS217.19.248.0/24 Safenames Datacentre | ||||||
| PTR | redirect1.safenames.com | ||||||
| SOA | dns1.idp365.nethostmaster@idp365.net 2014-07-18 #1 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1786592802 | ||||||
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSdns1.idp365.net2015-06-25 → 2026-08-13 · 2 obs
● 2026-08-13 04:00:16
●NSdns2.idp365.net2015-06-25 → 2026-08-13 · 2 obs
● 2026-08-13 04:00:16
●NSdns3.idp365.net2015-06-25 → 2026-08-13 · 2 obs
● 2026-08-13 04:00:16
●MXmail.idp365.net2015-06-25 → 2026-08-13 · 2 obs
● 2026-08-13 04:00:16
●A217.19.248.1322015-06-25 → 2026-08-13 · 2 obs
● 2026-08-13 04:00:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| udemy.org | dns3.idp365.net, dns1.idp365.net, dns2.idp365.net | - |
✅ Authoritative Response
Server:162.159.48.3
NS records: dns3.idp365.net, dns1.idp365.net, dns2.idp365.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for udemy.org (unsigned zone)
⏱️ Timing
Total: 448ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.19.248.132 |
| NS | 3 | dns1.idp365.net, dns2.idp365.net... |
| MX | 1 | mail.idp365.net (pri: 10) |
| SOA | 1 | dns1.idp365.net hostmaster.idp365.net |
Analysis
IP Addresses
udemy.org resolves to one IP address: 217.19.248.132.
stanleybet.com, wartsilamarine.net, moyalli.ru and two other host names share IP numbers with udemy.org.
Name Servers
udemy.org has three name servers — dns1.idp365.net, dns2.idp365.net and dns3.idp365.net.
udemy.org partially shares its NS delegation with several other domains, including danahercorp.jp, johnperrott.com, marshallamps.eu and two others.
Each of dns1.idp365.net, dns2.idp365.net and dns3.idp365.net points to two IP numbers. dns1.idp365.net points to 162.159.27.131 and 2400:cb00:2049:1::a29f:1b83. dns2.idp365.net points to 162.159.48.3 and 2400:cb00:2049:1::a29f:3003. dns3.idp365.net points to 162.159.49.254 and 2400:cb00:2049:1::a29f:31fe.
Mail Servers
Mail for udemy.org is handled by a single mail server, mail.idp365.net.
udemy.org uses an identical mail server configuration to several other domains — among them 21novq.com, solpadeinefast.ru, geforcedrivers.com and two more.
mail.idp365.net points to one IP number — 217.19.248.131.