ctb50.com - robtex.com
ctb50.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 60.205.2.148🇨🇳 Alibaba-Cloud60.205.0.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| NS | ns1.alidns.com ⭐ | ||||||
| A | 2408:4009:501::1🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.45🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.55🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.205🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.215🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.45🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.55🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.115🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.125🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| NS | ns2.alidns.com | ||||||
| A | 2408:4009:501::2🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.46🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.56🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.206🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.216🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.46🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.56🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.116🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.126🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| SOA | ns1.alidns.comhostmaster@hichina.com 2026-01-09 #13 | ||||||
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=1774440277 | ||||||
Same first word
ctb50.com |
Similar names
DNS History
5 records (3 active, 2 former)
○NSdns1.iidns.com2017-09-21 → 2017-09-21 · 3 obs
○ 2026-02-24 12:16:40
○ 2026-03-25 12:31:58
●NSns1.alidns.com2026-02-24 → 2026-03-25 · 3 obs
● 2026-02-24 12:16:40
● 2026-03-25 12:31:58
●NSns2.alidns.com2026-02-24 → 2026-03-25 · 3 obs
● 2026-02-24 12:16:40
● 2026-03-25 12:31:58
○A101.201.199.22017-09-21 → 2017-09-21 · 3 obs
○ 2026-02-24 12:16:40
○ 2026-03-25 12:31:58
●A60.205.2.1482026-02-24 → 2026-03-25 · 3 obs
● 2026-02-24 12:16:40
● 2026-03-25 12:31:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ctb50.com | ns1.alidns.com, ns2.alidns.com | 18 records |
✅ Authoritative Response
Server:120.76.107.45
NS records: ns1.alidns.com, ns2.alidns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctb50.com (unsigned zone)
⏱️ Timing
Total: 4642ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 60.205.2.148 |
| NS | 2 | ns2.alidns.com, ns1.alidns.com |
| SOA | 1 | ns1.alidns.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (ns1.alidns.com, ns1.alidns.com, ns1.alidns.com...)
Analysis
IP Addresses
ctb50.com maps to IP address 60.205.2.148.
Other host names, for instance statics.sinotf.com, bbs.sinotf.com, www.tisino.com, baike.sinotf.com and tisino.com share IP numbers with ctb50.com.
Name Servers
Two name servers ns1.alidns.com and ns2.alidns.com are delegated to ctb50.com.
ctb50.com uses the same name server configuration as other domains, such as a6a76aed610311.beer, 12ae5360d1014.beer, 1db8964631019.beer, charming-dress.com and hxgaxf.com.
ctb50.com at least partially shares name servers with other domains such as cawhi.com, junhua.cn, oqwenjg.cn, thwan.com and ulytao.cn.
These name servers are commonly used with ns7.alidns.com and ns8.alidns.com.
Two hosts with nine IPs each:
Host ns1.alidns.com points to 2408:4009:501::1, 39.96.153.45, 39.96.153.55, 47.118.199.205, 47.118.199.215, 120.76.107.45, 120.76.107.55, 139.224.142.115 and 139.224.142.125.
Host ns2.alidns.com points to 2408:4009:501::2, 39.96.153.46, 39.96.153.56, 47.118.199.206, 47.118.199.216, 120.76.107.46, 120.76.107.56, 139.224.142.116 and 139.224.142.126.