cdttszy.com - robtex.com
cdttszy.com
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=1771291435 | ||||||
Same first word
DNS History
8 records (5 active, 3 former)
●NSdns17.hichina.com2015-06-07 → 2026-03-24 · 2 obs
● 2026-03-24 02:45:06
●NSdns18.hichina.com2015-06-07 → 2026-03-24 · 2 obs
● 2026-03-24 02:45:06
○MXmail.cdttszy.com2015-06-07 → 2016-04-17 · 4 obs
● 2016-04-17 10:26:26
○ 2016-12-02 10:57:54
○ 2026-03-24 02:45:06
●MXmxbiz1.qq.com2016-12-02 → 2026-03-24 · 3 obs
● 2016-12-02 10:57:54
● 2026-03-24 02:45:06
●MXmxbiz2.qq.com2016-12-02 → 2026-03-24 · 3 obs
● 2016-12-02 10:57:54
● 2026-03-24 02:45:06
○A125.64.16.2352015-06-07 → 2016-04-17 · 4 obs
● 2016-04-17 10:26:26
○ 2016-12-02 10:57:54
○ 2026-03-24 02:45:06
○A125.67.237.1502016-12-02 → 2017-08-29 · 5 obs
● 2016-12-02 10:57:54
● 2017-08-29 11:38:16
○ 2026-03-18 04:57:24
○ 2026-03-24 02:45:06
●A211.149.224.1672026-03-18 → 2026-03-24 · 3 obs
● 2026-03-18 04:57:24
● 2026-03-24 02:45:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net, l.gtld-servers.net... | - |
| cdttszy.com | dns17.hichina.com, dns18.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.40
NS records: dns17.hichina.com, dns18.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cdttszy.com (unsigned zone)
⏱️ Timing
Total: 678ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 211.149.224.167 |
| NS | 2 | dns17.hichina.com, dns18.hichina.com |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| SOA | 1 | dns17.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns17.hichina.com, dns17.hichina.com, dns17.hichina.com...)
Analysis
IP Addresses
cdttszy.com points to IP number: 211.149.224.167.
Name Servers
cdttszy.com is delegated to two name servers: dns17.hichina.com and dns18.hichina.com.
cdttszy.com shares the same name server setup as leyiding.com, unitedtex.net, eunko.com, sivideo.com and jyinns.com.
cdttszy.com shares name servers with other domains, at least partially, for example ningwu.gov.cn, byefriend.com and (0x666170)u.net as well as wszy.gov.cn.
These name servers are commonly used with expirens3.hichina.com and expirens4.hichina.com.
Nine IP numbers per host:
dns17.hichina.com points to: 2408:4009:501::25, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110.
dns18.hichina.com points to: 2408:4009:501::26, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.
Mail Servers
cdttszy.com is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.
The mail server setup for cdttszy.com matches that of other domains, for instance ojson.com, h8u.cn, xmskj.com, goodwei.net and 139.me.
cdttszy.com shares some mail servers with other domains, for instance airmb.com, erpsas.cn and tkg-global.com.
Host names with two IP numbers: mxbiz1.qq.com points to 203.205.147.218 and 203.205.232.191. Host names with one IP number: mxbiz2.qq.com points to 203.205.232.191. Host names that point to 203.205.232.191: mxbiz1.qq.com and mxbiz2.qq.com.