know-how.net.cn - robtex.com
know-how.net.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 118.31.64.30🇨🇳 Alibaba-Cloud118.31.0.0/17 | ||||||
| NS | dns17.hichina.com ⭐ | ||||||
| A | 2408:4009:501::25🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.40🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.60🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.200🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.220🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.40🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.60🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.100🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.110🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| NS | dns18.hichina.com | ||||||
| A | 2408:4009:501::26🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.38🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.61🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.198🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.222🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.38🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.61🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.98🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.108🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| MX | mxbiz1.qq.com ⭐ | ||||||
| MX | mxbiz2.qq.com(10) | ||||||
| TXT | v=spf1 include:spf.mail.qq.com ~all | ||||||
| SOA | dns17.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
net.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=2028151836 | ||||||
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●NSdns17.hichina.com2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 15:13:26
● 2026-04-12 05:53:44
●NSdns18.hichina.com2026-03-26 → 2026-04-12 · 3 obs
● 2026-03-26 15:13:26
● 2026-04-12 05:53:44
○NSvip1.alidns.com2017-10-23 → 2017-10-23 · 3 obs
○ 2026-03-26 15:13:26
○ 2026-04-12 05:53:44
○NSvip2.alidns.com2017-10-23 → 2017-10-23 · 3 obs
○ 2026-03-26 15:13:26
○ 2026-04-12 05:53:44
●A118.31.64.302026-03-26 → 2026-04-12 · 2 obs
● 2026-04-12 05:53:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| know-how.net.cn | dns17.hichina.com, dns18.hichina.com | - |
✅ Authoritative Response
Server:39.96.153.38
NS records: dns17.hichina.com, dns18.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for know-how.net.cn (unsigned zone)
⏱️ Timing
Total: 1458ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 118.31.64.30 |
| NS | 2 | dns17.hichina.com, dns18.hichina.com |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mail.qq.com ~all |
| SOA | 1 | dns17.hichina.com hostmaster.hichina.com |
Analysis
IP Addresses
know-how.net.cn resolves to a single IP address: 118.31.64.30.
Name Servers
know-how.net.cn's delegation uses two name servers, dns17.hichina.com and dns18.hichina.com.
know-how.net.cn shares the same name server setup as other domains, for example gongqingpeiban.com, obcr.cn, ccscc.com.cn, sldj.com.cn and zj119.gov.cn.
know-how.net.cn shares some name servers with other domains, such as 02869.cn, wvdz.com, mindchange.com.cn and yangzijing.com.
These name servers are commonly used with ns1.alidns.com and ns2.alidns.com.
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
know-how.net.cn is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.
know-how.net.cn shares its mail server setup with other domains, including 001wan.com, cetetech.com, 79yo.com, ohh.ink and cqcyit.com.
know-how.net.cn shares some mail servers with other domains, for example jfyiyao.com and insoftb.com.cn.