sinobook.com.cn - robtex.com
sinobook.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=2030482650 | ||||||
rank #28031 in the tld
WOT: SAFE (60/100)
WOT: NOT_SAFE (20/100)
Same first word
Similar names
DNS History
7 records (3 active, 4 former)
●NSns1.sfn.cn2015-11-02 → 2026-03-28 · 3 obs
● 2015-11-02 23:52:20
● 2026-03-28 15:33:24
●NSns2.sfn.cn2015-11-02 → 2026-03-28 · 3 obs
● 2015-11-02 23:52:20
● 2026-03-28 15:33:24
○NSns3.sanfront.com.cn2015-06-10 → 2015-09-10 · 4 obs
● 2015-09-10 11:31:02
○ 2015-11-02 23:52:20
○ 2026-03-28 15:33:24
○NSns5.sanfront.com.cn2015-06-10 → 2015-09-10 · 4 obs
● 2015-09-10 11:31:02
○ 2015-11-02 23:52:20
○ 2026-03-28 15:33:24
○MXmail.sinobook.com.cn2015-06-10 → 2026-02-16 · 4 obs
● 2026-02-16 17:15:16
○ 2026-02-17 20:58:00
○ 2026-03-28 15:33:24
○A218.241.235.1602015-06-10 → 2026-02-16 · 4 obs
● 2026-02-16 17:15:16
○ 2026-02-17 20:58:00
○ 2026-03-28 15:33:24
●CNAMEc6939d160e9ec198.cdn.jiashule.com2026-02-16 → 2026-03-28 · 2 obs
● 2026-03-28 15:33:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| sinobook.com.cn | ns1.sfn.cn, ns2.sfn.cn | - |
✅ Authoritative Response
Server:111.63.77.29
NS records: ns1.sfn.cn, ns2.sfn.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sinobook.com.cn (unsigned zone)
⏱️ Timing
Total: 4097ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.sfn.cn, ns2.sfn.cn |
| CNAME | 1 | c6939d160e9ec198.cdn.jiashule.com |
| SOA | 1 | ns1.sfn.cn root.ns1.sfn.cn |
Analysis
IP Addresses
sinobook.com.cn resolves to two IP numbers: 27.155.113.167 and 36.158.231.193.
Other host names, for instance de099b445623fa72.cdn.jiashule.com, 2c43bcd85f9f0875.vip.jiasule.org, aa64d1823e498fc3.cdn.jiashule.com, 481b367c4ba0904b.cdn.jiashule.com and 04f4fa4a1c194dc1.cdn.jiashule.com share IP numbers with sinobook.com.cn.
Name Servers
Two name servers ns1.cyudun.net and ns2.cyudun.net handle delegation for sinobook.com.cn.
sinobook.com.cn uses the same name server setup as other domains, for example fuwu.rsj.beijing.gov.cn, 26126a0b39e74fcc.cdn.jiashule.com, 57a3d3f7bf358472.cdn.jiashule.com, c9e52805181fdaab.cdn.jiashule.com and deb1ca0bf2ea9522.cdn.jiashule.com.
sinobook.com.cn partially shares name servers with other domains; examples include a834ca664ae9f273.cdn.jiashule.com, 171ef0d840a82168.cdn.jiashule.com, 5ca8afd6f3abdc71.cdn.jiashule.com, msglb.91160.com and f55cfcdb5805c0cc.cdn.jiashule.com.
These name servers are commonly used with ns1.kangdns.com, ns2.kangdns.com, ns1.365cyd.net, ns2.365cyd.net, ns1.jiasule.net and ns2.jiasule.net.
Host names with four IP numbers: The host name ns1.cyudun.net points to 2409:8c04:1101:3050::450, 240e:965:802:1040::420, 27.155.113.184 and 111.62.149.171.
Host names with three IP numbers: The host name ns2.cyudun.net points to 240e:965:802:1040::420, 27.155.113.184 and 111.62.149.171.
Host names that point to 240e:965:802:1040::420 are ns1.cyudun.net and ns2.cyudun.net.
Host names that point to 27.155.113.184 are ns1.cyudun.net and ns2.cyudun.net.
Host names that point to 111.62.149.171 are ns1.cyudun.net and ns2.cyudun.net.