u3.com.cn - robtex.com
u3.com.cn
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=2030718841 | ||||||
Same first word
u3.com |
u3.pl |
u3.cz |
u3.kz |
u3.dk |
u3.hu |
u3.ro |
u3.eu |
u3.com.cn |
u3.su |
u3.to |
u3.sk |
u3.se |
u3.biz |
u3.ie |
u3.fr |
u3.net |
u3.cl |
u3.org |
u3.be |
u3.nl |
u3.lt |
Similar names
3u.gg |
3u.nl |
3u.su |
3u.cn |
3u.org |
3u.ie |
3u.com |
3u.co.za |
3u.lt |
3u.no |
3u.sk |
3u.be |
3u.vc |
3u.net |
3u.ca |
3u.ro |
3u.cz |
3u.com.ar |
3u.cc |
3u.bet |
3u.dk |
3u.ai |
3u.se |
DNS History
5 records (5 active, 0 former)
●NSdns29.hichina.com2026-04-30 → 2026-07-31 · 2 obs
● 2026-07-31 23:16:06
●NSdns30.hichina.com2026-04-30 → 2026-07-31 · 2 obs
● 2026-07-31 23:16:06
●MXmxn.mxhichina.com2026-04-30 → 2026-07-31 · 5 obs
● 2026-05-23 09:02:12
○ 2026-06-17 07:49:40
● 2026-07-31 23:16:04
● 2026-07-31 23:16:06
●MXmxw.mxhichina.com2026-04-30 → 2026-07-31 · 5 obs
● 2026-05-23 09:02:12
○ 2026-06-17 07:49:40
● 2026-07-31 23:16:04
● 2026-07-31 23:16:06
●A121.41.64.2362026-04-30 → 2026-07-31 · 5 obs
● 2026-05-23 09:02:12
○ 2026-06-17 07:49:40
● 2026-07-31 23:16:04
● 2026-07-31 23:16:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, c.dns.cn, d.dns.cn, e.dns.cn... | - |
| u3.com.cn | dns29.hichina.com, dns30.hichina.com | - |
✅ Authoritative Response
Server:139.224.142.99
NS records: dns29.hichina.com, dns30.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for u3.com.cn (unsigned zone)
⏱️ Timing
Total: 1655ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.41.64.236 |
| NS | 2 | dns30.hichina.com, dns29.hichina.com |
| MX | 2 | mxn.mxhichina.com (pri: 5), mxw.mxhichina.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mxhichina.com -all |
| SOA | 1 | dns29.hichina.com hostmaster.hichina.com |
Analysis
IP Addresses
u3.com.cn has exactly one IP address — 121.41.64.236.
Name Servers
Two name servers handle the delegation for u3.com.cn: dns29.hichina.com and dns30.hichina.com.
The name server configuration of u3.com.cn is shared with other domains, for instance sycjedu.com, sdzttz.com, xgtip.com and two others.
The name servers of u3.com.cn overlap at least partially with those of other domains — among them finedeer.com, yywh520.com, kenny.pro and two more.
These name servers commonly appear alongside the name servers expirens3.hichina.com and expirens4.hichina.com.
Hosts with 9 IP addresses each:
dns29.hichina.com resolves to 39.96.153.39, 39.96.153.59 and 47.118.199.199 among others, with 6 other IP addresses in total.
dns30.hichina.com resolves to 39.96.153.37, 39.96.153.62 and 47.118.199.197 among others, with 6 other IP addresses in total.
Mail Servers
u3.com.cn uses two mail servers, mxn.mxhichina.com and mxw.mxhichina.com.
The mail server setup of u3.com.cn matches that of other domains such as ukeir.com, e736.com, alsoaba.com and two others.
At least some of the mail servers used by u3.com.cn are shared with other domains: pneda.com, asfim.cn, yibo.net and two others among them.
Host names pointing to two IP addresses:
mxn.mxhichina.com resolves to two addresses: 47.246.136.231 and 47.246.137.47.
Host names resolving to a single IP address:
The hostname mxw.mxhichina.com resolves to 47.246.99.195.