ctdev.cn - dns.ninja
ctdev.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | vip1.alidns.com ⭐ | ||||||
| A | 2408:4009:500::1🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group | ||||||
| A | 8.212.93.1🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 140.205.1.1🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 170.33.32.208🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 170.33.73.24🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 170.33.80.8🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| NS | vip2.alidns.com | ||||||
| A | 2408:4009:500::2🇨🇳 Alibaba-Cloud2408:4009:500::/48 Alibaba Group | ||||||
| A | 8.212.93.2🇭🇰 Alibaba_Cloud_SEC8.212.93.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 140.205.1.2🇨🇳 Alibaba-Cloud140.205.1.0/24 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 170.33.32.209🇸🇬 Alibaba_Cloud_SEC170.33.32.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 170.33.73.25🇸🇬 Alibaba_Cloud_SEC170.33.73.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 170.33.80.9🇸🇬 Alibaba_Cloud_SEC170.33.80.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| MX | mxdomain.qq.com ⭐ | ||||||
| SOA | vip1.alidns.comhostmaster@hichina.com 2025-12-10 #11 | ||||||
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=2034915628 | ||||||
Same first word
Similar names
DNS History
7 records (3 active, 4 former)
○NSdns7.hichina.com2015-08-03 → 2020-03-16 · 4 obs
● 2020-03-16 11:35:26
○ 2026-03-14 01:30:32
○ 2026-06-14 04:29:30
○NSdns8.hichina.com2015-08-03 → 2020-03-16 · 4 obs
● 2020-03-16 11:35:26
○ 2026-03-14 01:30:32
○ 2026-06-14 04:29:30
●NSvip1.alidns.com2026-03-14 → 2026-06-14 · 3 obs
● 2026-03-14 01:30:32
● 2026-06-14 04:29:30
●NSvip2.alidns.com2026-03-14 → 2026-06-14 · 3 obs
● 2026-03-14 01:30:32
● 2026-06-14 04:29:30
○A23.105.195.1072017-03-27 → 2017-03-27 · 3 obs
○ 2020-03-16 11:35:26
○ 2026-06-14 04:29:30
○A50.116.41.572020-03-16 → 2020-03-16 · 4 obs
● 2020-03-16 11:35:26
○ 2026-03-14 01:30:32
○ 2026-06-14 04:29:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| ctdev.cn | vip1.alidns.com, vip2.alidns.com | - |
✅ Authoritative Response
Server:140.205.1.1
NS records: vip1.alidns.com, vip2.alidns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctdev.cn (unsigned zone)
⏱️ Timing
Total: 4010ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | vip2.alidns.com, vip1.alidns.com |
| MX | 1 | mxdomain.qq.com (pri: 10) |
| SOA | 1 | vip1.alidns.com hostmaster.hichina.com |
Analysis
Name Servers
ctdev.cn uses two name servers for its delegation: vip1.alidns.com and vip2.alidns.com.
ctdev.cn has the same name server delegation as a number of other domains, such as zgxqds.com, toada.cn, dhpfactory.com and two more.
Some of ctdev.cn's name servers are also used by other domains, including mutao.in, talentcreations.com, ipipgo.net and civaonline.cn.
These name servers are regularly seen alongside vip3.alidns.com and vip4.alidns.com as name servers.
Host names resolving to 6 IP numbers:
Hostname vip1.alidns.com directs to 8.212.93.1, 140.205.1.1 and 170.33.32.208 along with 3 other IP addresses.
Hostname vip2.alidns.com directs to 8.212.93.2, 140.205.1.2 and 170.33.32.209 along with 3 other IP addresses.
Mail Servers
ctdev.cn routes its mail through a single mail server, mxdomain.qq.com.
ctdev.cn has the same mail server arrangement as a number of other domains, for example kulilac.com, nbmm.com.cn, haosilu.com and two more.
ctdev.cn shares at least some of its mail servers with other domains — for example heikaluxury.com, almusic.org, touhou.name and two more.
The mail servers mxbiz1.qq.com and mxbiz2.qq.com regularly co-occur with these mail servers.