kooclass.com - robtex.com

kooclass.com

DNSSEC⚠️ Not signed
A156.239.42.110🇺🇸 AROSSCLOUD-AS156.239.40.0/22
NSdns15.hichina.com
A2408:4009:501::23🇨🇳 Alibaba-Cloud2408:4009:501::/48
A39.96.153.42🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A39.96.153.52🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A47.118.199.202🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A47.118.199.212🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A120.76.107.42🇨🇳 Alibaba-Cloud120.76.0.0/17
A120.76.107.52🇨🇳 Alibaba-Cloud120.76.0.0/17
A139.224.142.112🇨🇳 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,
A139.224.142.122🇨🇳 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,
NSdns16.hichina.com
A2408:4009:501::24🇨🇳 Alibaba-Cloud2408:4009:501::/48
A39.96.153.41🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A39.96.153.51🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A47.118.199.201🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A47.118.199.211🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A120.76.107.41🇨🇳 Alibaba-Cloud120.76.0.0/17
A120.76.107.51🇨🇳 Alibaba-Cloud120.76.0.0/17
A139.224.142.111🇨🇳 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,
A139.224.142.121🇨🇳 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,
SOAdns15.hichina.comhostmaster@hichina.com 2026-01-12 #9

com

Same first word

Similar names

DNS History

6 records (3 active, 3 former)

20162017201820192020202120222023202420252026NSdns15.hichina.comdns16.hichina.comdns21.hichina.comdns22.hichina.comA156.239.42.110122.226.246.234
NSdns15.hichina.com2026-07-20 → 2026-07-24 · 3 obs
○ 2017-04-24 03:01:14
● 2026-07-20 15:46:36
● 2026-07-24 20:18:32
NSdns16.hichina.com2026-07-20 → 2026-07-24 · 3 obs
○ 2017-04-24 03:01:14
● 2026-07-20 15:46:36
● 2026-07-24 20:18:32
NSdns21.hichina.com2015-07-08 → 2017-04-24 · 4 obs
● 2015-07-08 12:05:58
● 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
● 2015-07-08 12:05:58
● 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
● 2015-07-08 12:05:58
● 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
○ 2017-04-24 03:01:14
● 2026-07-20 15:46:36
● 2026-07-24 20:18:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
kooclass.comdns15.hichina.com, dns16.hichina.com18 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

TypeCountSample Data
A1156.239.42.110
NS2dns15.hichina.com, dns16.hichina.com
SOA1dns15.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.