rstudy.cn - dns.ninja

rstudy.cn

DNSSEC⚠️ Not signed
NSns11.xincache.com ⭐
A2402:4e00:1470:2::e🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40
A2402:4e00:1730::e🇨🇳 TENCENT-NET-AP2402:4e00:1700::/40
A1.12.0.4🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM
A36.155.149.180🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)
A112.80.181.45🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network
A117.89.178.173🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC
A125.94.59.210🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network
A129.211.176.209🇨🇳 TENCENT-NET-AP129.211.176.0/20
NSns12.xincache.com
A2402:4e00:111:fff::c🇨🇳 TENCENT-NET-AP2402:4e00::/35
A1.12.0.1🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM
A36.155.149.176🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)
A112.80.181.111🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network
A117.89.178.184🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC
A129.211.176.239🇨🇳 TENCENT-NET-AP129.211.176.0/20
A163.177.5.23🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24
MXmxbiz1.qq.com ⭐
MXmxbiz2.qq.com(10)
SOAns11.xincache.comns12@xincache.com serial=1781487667

cn

DNSSEC⚠️ Not signed
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2035114826

Same first word

rstudy.com
rstudy.net
rstudy.cn

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DNS History

4 records (4 active, 0 former)

NSns11.xincache.comns12.xincache.comMXmxbiz1.qq.commxbiz2.qq.com
●NSns11.xincache.com2026-02-24 → 2026-07-31 · 2 obs
● 2026-02-24 03:51:24
● 2026-07-31 06:20:26
●NSns12.xincache.com2026-02-24 → 2026-07-31 · 2 obs
● 2026-02-24 03:51:24
● 2026-07-31 06:20:26
●MXmxbiz1.qq.com2026-02-24 → 2026-07-31 · 2 obs
● 2026-02-24 03:51:24
● 2026-07-31 06:20:26
●MXmxbiz2.qq.com2026-02-24 → 2026-07-31 · 2 obs
● 2026-02-24 03:51:24
● 2026-07-31 06:20:26

🔍 DNS Trace

Analysis

Name Servers

rstudy.cn is delegated to two name servers: ns11.xincache.com and ns12.xincache.com.

rstudy.cn has the same name server delegation as a number of other domains, such as nengqiao.cn, dgsmhc.cn, zhenxinfb.com and two more.

rstudy.cn shares at least some of its name servers with other domains, including jyytdz.com, chinalotionspa.com, zkgyshop.com and two others.

These name servers are frequently seen alongside ns19.xincache.com, ns20.xincache.com, ce1.xincache.com and 7 other name servers.

Host names resolving to 8 IP numbers:

ns11.xincache.com resolves to 1.12.0.4, 36.155.149.180, 112.80.181.45 and 5 other IP addresses.

Host names resolving to 7 IP numbers:

ns12.xincache.com resolves to 1.12.0.1, 36.155.149.176, 112.80.181.111 and 4 other IP addresses.

Mail Servers

The MX records for rstudy.cn point to two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

rstudy.cn has the same mail server arrangement as a number of other domains, for example zgarts.com, digitell.cn, shengwenyun.com and two more.

rstudy.cn shares at least some of its mail servers with other domains — for example lucdn.cn, fjgg.cn, tiantaoinfo.com and two more.