udemy.com.cn - robtex.com
udemy.com.cn
| 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 2014-06-04 #1 | ||||||
com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2030531758 | ||||||
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSdns1.idp365.net2015-08-01 → 2026-04-24 · 2 obs
● 2026-04-24 08:52:58
●NSdns2.idp365.net2015-08-01 → 2026-04-24 · 2 obs
● 2026-04-24 08:52:58
●NSdns3.idp365.net2015-08-01 → 2026-04-24 · 2 obs
● 2026-04-24 08:52:58
●MXmail.idp365.net2015-08-01 → 2026-04-24 · 2 obs
● 2026-04-24 08:52:58
●A217.19.248.1322015-08-01 → 2026-04-24 · 2 obs
● 2026-04-24 08:52:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, a.dns.cn, e.dns.cn, c.dns.cn... | - |
| udemy.com.cn | dns1.idp365.net, dns2.idp365.net, dns3.idp365.net | - |
✅ Authoritative Response
Server:162.159.27.131
NS records: dns1.idp365.net, dns2.idp365.net, dns3.idp365.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for udemy.com.cn (unsigned zone)
⏱️ Timing
Total: 425ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.19.248.132 |
| NS | 3 | dns2.idp365.net, dns1.idp365.net... |
| MX | 1 | mail.idp365.net (pri: 10) |
| SOA | 1 | dns1.idp365.net hostmaster.idp365.net |
Analysis
IP Addresses
udemy.com.cn points to an IP address: 217.19.248.132.
other host names include b-onena.com, openia.eu, pruftechnik.org, blendtec.com.mx and exccel.org; they share IP numbers with udemy.com.cn.
Name Servers
udemy.com.cn is delegated to three name servers dns1.idp365.net, dns2.idp365.net and dns3.idp365.net.
udemy.com.cn at least partially shares name servers with other domains, for instance thefatherofloud.org, e-conoled.com, paperpunchplus.com, aramex.com.es and cheznous.com.
These name servers are commonly used alongside dns1.idp365.com.
Host names with two IP numbers:
dns1.idp365.net points to 2400:cb00:2049:1::a29f:1b83 and 162.159.27.131; dns2.idp365.net points to 2400:cb00:2049:1::a29f:3003 and 162.159.48.3; dns3.idp365.net points to 2400:cb00:2049:1::a29f:31fe and 162.159.49.254.
Mail Servers
udemy.com.cn is handled by a single mail server, mail.idp365.net.
udemy.com.cn uses the same mail server setup as other domains, for instance milliescookies.co.uk, diabetesandyouchallenge.org, 24-7bookie.com, danaheru.com and hotelnorthlondon.com.
The host name mail.idp365.net points to IP 217.19.248.131.