kooclass.com - robtex.com
kooclass.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 156.239.42.110🇺🇸 AROSSCLOUD-AS156.239.40.0/22 | ||||||
| NS | dns15.hichina.com ⭐ | ||||||
| A | 2408:4009:501::23🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.42🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.52🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.202🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.212🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.42🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.52🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.112🇨🇳 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 | 139.224.142.122🇨🇳 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 | dns16.hichina.com | ||||||
| A | 2408:4009:501::24🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.41🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.51🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.201🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.211🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.41🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.51🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.111🇨🇳 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 | 139.224.142.121🇨🇳 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, | ||||||
| SOA | dns15.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
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=1784922747 | ||||||
Same first word
kooclass.com |
Similar names
DNS History
6 records (3 active, 3 former)
●NSdns15.hichina.com2026-07-20 → 2026-07-24 · 3 obs
● 2026-07-20 15:46:36
● 2026-07-24 20:18:32
●NSdns16.hichina.com2026-07-20 → 2026-07-24 · 3 obs
● 2026-07-20 15:46:36
● 2026-07-24 20:18:32
○NSdns21.hichina.com2015-07-08 → 2017-04-24 · 4 obs
● 2017-04-24 03:01:14
○ 2026-07-20 15:46:36
○ 2026-07-24 20:18:32
○NSdns22.hichina.com2015-07-08 → 2017-04-24 · 4 obs
● 2017-04-24 03:01:14
○ 2026-07-20 15:46:36
○ 2026-07-24 20:18:32
○A122.226.246.2342015-07-08 → 2017-04-24 · 4 obs
● 2017-04-24 03:01:14
○ 2026-07-20 15:46:36
○ 2026-07-24 20:18:32
●A156.239.42.1102026-07-20 → 2026-07-24 · 3 obs
● 2026-07-20 15:46:36
● 2026-07-24 20:18:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| kooclass.com | dns15.hichina.com, dns16.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.42
NS records: dns15.hichina.com, dns16.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kooclass.com (unsigned zone)
⏱️ Timing
Total: 536ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 156.239.42.110 |
| NS | 2 | dns15.hichina.com, dns16.hichina.com |
| SOA | 1 | dns15.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns15.hichina.com, dns15.hichina.com, dns15.hichina.com...)
Analysis
IP Addresses
kooclass.com points to a single IP number: 156.239.42.110.
Additional host names — 300482.com, teamsoft.cn, ipbase.cn and two others — share IP numbers with kooclass.com.
Name Servers
DNS delegation for kooclass.com points to two name servers: dns15.hichina.com and dns16.hichina.com.
kooclass.com shares its name server setup with other domains, including wheybio.com, hfbcleasing.com.cn, ruggedi.com and two others.
kooclass.com shares at least some of its name servers with other domains, including gjzpcb.com, gomore.net, fj96336.net and two others.
These name servers are frequently paired with the name servers expirens3.hichina.com and expirens4.hichina.com.
Host names with 9 IP numbers:
dns15.hichina.com has IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, plus 6 other.
dns16.hichina.com has IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, plus 6 other.