polytech.com.cn - dns.ninja
polytech.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 121.41.6.95🇨🇳 Alibaba-Cloud121.40.0.0/15 | ||||||
| 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 | hzmx01.mxmail.netease.com ⭐ | ||||||
| A | 47.251.71.119🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object | ||||||
| A | 47.251.84.126🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object | ||||||
| MX | hzmx02.mxmail.netease.com(10) | ||||||
| A | 47.251.71.119🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object | ||||||
| A | 47.251.84.126🇺🇸 Alibaba-Cloud47.251.0.0/17 Proxy-registered route object | ||||||
| TXT | v=spf1 include:spf.qiye.163.com -all | ||||||
| SOA | vip1.alidns.comhostmaster@hichina.com 2025-12-10 #11 | ||||||
com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2030625877 | ||||||
Same first word
Similar names
techpoly.co.jp |
techploy.com |
pylotech.com |
phytocel.com |
techoply.com |
plyotech.com |
ploytech.com |
techpoly.com |
ploytech.click |
DNS History
5 records (5 active, 0 former)
●NSvip1.alidns.com2026-05-26 → 2026-06-13 · 2 obs
● 2026-06-13 18:45:28
●NSvip2.alidns.com2026-05-26 → 2026-06-13 · 2 obs
● 2026-06-13 18:45:28
●MXhzmx01.mxmail.netease.com2026-05-26 → 2026-06-13 · 2 obs
● 2026-06-13 18:45:28
●MXhzmx02.mxmail.netease.com2026-05-26 → 2026-06-13 · 2 obs
● 2026-06-13 18:45:28
●A121.41.6.952026-05-26 → 2026-06-13 · 2 obs
● 2026-06-13 18:45:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, b.dns.cn, a.dns.cn, e.dns.cn... | - |
| polytech.com.cn | vip1.alidns.com, vip2.alidns.com | - |
✅ Authoritative Response
Server:170.33.73.25
NS records: vip1.alidns.com, vip2.alidns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for polytech.com.cn (unsigned zone)
⏱️ Timing
Total: 2394ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.41.6.95 |
| NS | 2 | vip2.alidns.com, vip1.alidns.com |
| MX | 2 | hzmx01.mxmail.netease.com (pri: 5), hzmx02.mxmail.netease.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.qiye.163.com -all |
| SOA | 1 | vip1.alidns.com hostmaster.hichina.com |
Analysis
IP Addresses
polytech.com.cn resolves to one IP address: 121.41.6.95.
Other host names, for instance huikangtech.com.cn, huikangtech.cn and huikangtech.com share IP numbers with polytech.com.cn.
Name Servers
The NS records for polytech.com.cn delegate to vip1.alidns.com and vip2.alidns.com.
polytech.com.cn uses the same name servers as several other domains — among them fsrpg.net, goodnight.com.cn, mcneko.com and two more.
At least some of polytech.com.cn's name servers are shared with other domains, for example mzchn.net, best-inc.com, bandicam.cn and two more.
These name servers tend to co-occur with vip3.alidns.com, vip4.alidns.com, vip5.alidns.com and 3 other name servers in the same DNS delegations.
Hostnames that resolve to 6 IP addresses:
vip1.alidns.com maps to 8.212.93.1, 140.205.1.1, 170.33.32.208 and 3 additional IP addresses.
vip2.alidns.com maps to 8.212.93.2, 140.205.1.2, 170.33.32.209 and 3 additional IP addresses.
Mail Servers
Mail for polytech.com.cn is handled by two mail servers — hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com.
polytech.com.cn uses an identical mail server configuration to several other domains — among them huayuanlbj.com, hkram.com, dualrays.com and two more.
polytech.com.cn overlaps on mail servers with certain other domains, shzq.edu.cn among them.
hzmx01.mxmail.netease.com has IP addresses 47.251.71.119 and 47.251.84.126; hzmx02.mxmail.netease.com has the same IP addresses: 47.251.71.119 and 47.251.84.126.
hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com each have 47.251.71.119 IP addresses.
hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com each have 47.251.84.126 IP addresses.