librex.cn - robtex.com
librex.cn
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034703639 | ||||||
Same first word
librex.net |
librex.cn |
librex.de |
librex.co.uk |
librex.be |
librex.us |
librex.eu |
librex.cz |
librex.com |
librex.fr |
librex.ro |
Similar names
DNS History
8 records (6 active, 2 former)
●NSns51.domaincontrol.com2015-08-11 → 2026-04-23 · 2 obs
● 2026-04-23 15:48:00
●NSns52.domaincontrol.com2015-08-11 → 2026-04-23 · 2 obs
● 2026-04-23 15:48:00
●MXmailstore1.secureserver.net2015-08-11 → 2026-04-23 · 2 obs
● 2026-04-23 15:48:00
●MXsmtp.secureserver.net2015-08-11 → 2026-04-23 · 2 obs
● 2026-04-23 15:48:00
●A15.197.225.1282026-04-10 → 2026-04-23 · 3 obs
● 2026-04-10 23:58:28
● 2026-04-23 15:48:00
○A184.168.131.2412020-03-04 → 2020-03-04 · 4 obs
● 2020-03-04 16:44:18
○ 2026-04-10 23:58:28
○ 2026-04-23 15:48:00
●A3.33.251.1682026-04-10 → 2026-04-23 · 3 obs
● 2026-04-10 23:58:28
● 2026-04-23 15:48:00
○A50.63.202.102015-08-11 → 2017-04-21 · 4 obs
● 2017-04-21 04:47:04
○ 2020-03-04 16:44:18
○ 2026-04-23 15:48:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| librex.cn | ns51.domaincontrol.com, ns52.domaincontrol.com | - |
✅ Authoritative Response
Server:173.201.73.26
NS records: ns51.domaincontrol.com, ns52.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for librex.cn (unsigned zone)
⏱️ Timing
Total: 717ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 15.197.225.128, 3.33.251.168 |
| NS | 2 | ns51.domaincontrol.com, ns52.domaincontrol.com |
| MX | 2 | mailstore1.secureserver.net (pri: 10), smtp.secureserver.net (pri: 0) |
| SOA | 1 | NS51.DOMAINCONTROL.COM dns.jomax.net |
Analysis
IP Addresses
librex.cn resolves to two IP numbers: 3.33.251.168 and 15.197.225.128.
Other host names, for instance lcbi.org, 1eu.net, yasotangbao.com, dykedetective.com and descubrir.net share IP numbers with librex.cn.
Name Servers
Two name servers ns51.domaincontrol.com and ns52.domaincontrol.com handle delegation for librex.cn.
librex.cn uses the same name server setup as other domains, for example beluso.net, k12bookservice.com, techmounts.com.cn, payoquick.com and flatironfamilymedical.com.
Host names with two IP numbers:
ns51.domaincontrol.com points to: 2603:5:2192::1a and 97.74.105.26
ns52.domaincontrol.com points to: 2603:5:2292::1a and 173.201.73.26
Mail Servers
librex.cn is handled by two mail servers: mailstore1.secureserver.net and smtp.secureserver.net.
librex.cn has the same mail server setup as other domains, including winenet.com, jadeyoga.us, techiearjun.com, happy420days.com and enwonwu.com.
librex.cn shares some mail servers with other domains at least partially, for example tcyonline.com, anti-stress.org, kodivpn.co and onehapp.com.
Host names with three IP numbers:
mailstore1.secureserver.net points to 216.69.141.78, 216.69.141.114 and 216.69.141.162.
smtp.secureserver.net points to 216.69.141.71, 216.69.141.84 and 216.69.141.113.