ct-sky.cn - robtex.com
ct-sky.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | alma.dnspod.net ⭐ | ||||||
| A | 2402:4e00:1470:2::e🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40 | ||||||
| A | 1.12.0.4🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM | ||||||
| A | 1.14.119.35🇨🇳 TENCENT-NET-AP1.14.64.0/18 | ||||||
| A | 111.13.13.35🇨🇳 CHINAMOBILE-CN111.13.0.0/16 CMI (Customer Route) | ||||||
| A | 112.80.181.45🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network | ||||||
| A | 117.89.178.173🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC | ||||||
| NS | isabel.dnspod.net | ||||||
| A | 2402:4e00:111:fff::c🇨🇳 TENCENT-NET-AP2402:4e00::/35 | ||||||
| A | 1.12.0.1🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM | ||||||
| A | 36.155.149.176🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route) | ||||||
| A | 101.227.168.35🇨🇳 SHANGHAITELECOM101.227.168.0/23 SHIDC | ||||||
| A | 111.206.98.235🇨🇳 CHINA169-BJ111.206.98.0/24 | ||||||
| A | 129.211.176.239🇨🇳 TENCENT-NET-AP129.211.176.0/20 | ||||||
| MX | mxbiz1.qq.com ⭐ | ||||||
| MX | mxbiz2.qq.com(10) | ||||||
| TXT | v=spf1 include:spf.mail.qq.com ~all | ||||||
| SOA | alma.dnspod.netfreednsadmin@dnspod.com serial=1660295482 | ||||||
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=2034660274 | ||||||
Same first word
ct-sky.cn |
DNS History
4 records (4 active, 0 former)
●NSalma.dnspod.net2026-02-22 → 2026-04-11 · 2 obs
● 2026-04-11 22:18:58
●NSisabel.dnspod.net2026-02-22 → 2026-04-11 · 2 obs
● 2026-04-11 22:18:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| ct-sky.cn | alma.dnspod.net, isabel.dnspod.net | - |
✅ Authoritative Response
Server:1.12.0.1
NS records: alma.dnspod.net, isabel.dnspod.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ct-sky.cn (unsigned zone)
⏱️ Timing
Total: 929ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | isabel.dnspod.net, alma.dnspod.net |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mail.qq.com ~all |
| SOA | 1 | alma.dnspod.net freednsadmin.dnspod.com |
Analysis
Name Servers
Two name servers alma.dnspod.net and isabel.dnspod.net are delegated to ct-sky.cn.
ct-sky.cn uses the same name server configuration as other domains, such as samyinyue.com, longjiwenhua.com, gm5u.com, devh.cn and zawxx.com.
ct-sky.cn shares some name servers with other domains, for example xmhuabo.com.
Host names with six IP numbers: Host name alma.dnspod.net points to 2402:4e00:1470:2::e, 1.12.0.4, 1.14.119.35, 111.13.13.35, 112.80.181.45 and 117.89.178.173; host name isabel.dnspod.net points to 2402:4e00:111:fff::c, 1.12.0.1, 36.155.149.176, 101.227.168.35, 111.206.98.235 and 129.211.176.239.
Mail Servers
Two mail servers handle ct-sky.cn: mxbiz1.qq.com and mxbiz2.qq.com.
ct-sky.cn shares the same mail server setup as other domains, including sitcores.com, xintone.cn, classbro.com, njtmi.com and zxshare.com.
ct-sky.cn shares mail servers with other domains at least in part, for instance sudosoft.com, st-i.com.cn, cdxxz.com, gaoping.cn and qdlogistics.com.