ycb51.com - robtex.com
ycb51.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
Same first word
ycb51.com |
Similar names
DNS History
8 records (5 active, 3 former)
●NSdns10.hichina.com2016-12-14 → 2026-03-15 · 2 obs
● 2026-03-15 17:45:02
●NSdns9.hichina.com2016-12-14 → 2026-03-15 · 2 obs
● 2026-03-15 17:45:02
●MXmx1.qiye.aliyun.com2026-03-15 → 2026-03-15 · 3 obs
● 2026-03-15 12:36:00
● 2026-03-15 17:45:02
●MXmx2.qiye.aliyun.com2026-03-15 → 2026-03-15 · 3 obs
● 2026-03-15 12:36:00
● 2026-03-15 17:45:02
●MXmx3.qiye.aliyun.com2026-03-15 → 2026-03-15 · 3 obs
● 2026-03-15 12:36:00
● 2026-03-15 17:45:02
○MXmxbiz1.qq.com2016-12-14 → 2018-06-19 · 4 obs
● 2018-06-19 08:40:56
○ 2026-03-15 12:36:00
○ 2026-03-15 17:45:02
○MXmxbiz2.qq.com2016-12-14 → 2018-06-19 · 4 obs
● 2018-06-19 08:40:56
○ 2026-03-15 12:36:00
○ 2026-03-15 17:45:02
○A121.43.154.1482018-06-19 → 2018-06-19 · 3 obs
○ 2026-03-15 12:36:00
○ 2026-03-15 17:45:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| ycb51.com | dns9.hichina.com, dns10.hichina.com | 18 records |
✅ Authoritative Response
Server: 120.76.107.41
NS records: dns9.hichina.com, dns10.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ycb51.com (unsigned zone)
⏱️ Timing
Total: 3940ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns10.hichina.com, dns9.hichina.com |
| MX | 3 | mx2.qiye.aliyun.com (pri: 10), mx1.qiye.aliyun.com (pri: 5)... |
| TXT | 1 | v=spf1 include:spf.qiye.aliyun.com -all |
| SOA | 1 | dns9.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns9.hichina.com, dns9.hichina.com, dns9.hichina.com...)
Analysis
Name Servers
Two name servers dns10.hichina.com and dns9.hichina.com are delegated to ycb51.com.
ycb51.com uses the same name server configuration as other domains, such as doobuy.net, xstv.com.cn, aquamacro.com, xixianjituan.com and 1024.ink.
ycb51.com shares name servers with other domains at least partially, for instance gciig.com and dxka.com.
Two hosts with nine IPs each:
Host dns10.hichina.com points to 2408:4009:501::18, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.
Host dns9.hichina.com points to 2408:4009:501::17, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.
Mail Servers
ycb51.com is handled by three mail servers: mx1.qiye.aliyun.com, mx2.qiye.aliyun.com and mx3.qiye.aliyun.com.
ycb51.com shares mail servers with other domains at least in part, for instance flelaser.com, lchome.com, 1yuan.cn, jysdr.com and sports.edu.cn.
These mail servers are commonly used together with mxn.mxhichina.com and mxw.mxhichina.com.
Host names with two IP numbers:
mx3.qiye.aliyun.com points to 47.246.136.231 and 47.246.137.47.
Host names with one IP number:
mx1.qiye.aliyun.com points to 47.246.137.47.
mx2.qiye.aliyun.com points to 47.246.136.231.
Host names pointing to 47.246.136.231: mx3.qiye.aliyun.com and mx2.qiye.aliyun.com.
Host names pointing to 47.246.137.47: mx3.qiye.aliyun.com and mx1.qiye.aliyun.com.