math200.com - robtex.com
math200.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 123.56.42.130🇨🇳 Alibaba-Cloud123.56.0.0/16 Alibaba (US) Technology Co., Ltd. | ||||||
| NS | dns29.hichina.com ⭐ | ||||||
| A | 2408:4009:501::37🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.39🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.59🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.199🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.219🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.39🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.59🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.99🇨🇳 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 | 139.224.142.109🇨🇳 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 | dns30.hichina.com | ||||||
| A | 2408:4009:501::38🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.37🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.62🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.197🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.221🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.37🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.62🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.102🇨🇳 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 | 139.224.142.107🇨🇳 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 | dns29.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=1774464122 | ||||||
Same first word
math200.com |
DNS History
3 records (3 active, 0 former)
●NSdns29.hichina.com2026-03-11 → 2026-03-25 · 2 obs
● 2026-03-25 18:55:58
●NSdns30.hichina.com2026-03-11 → 2026-03-25 · 2 obs
● 2026-03-25 18:55:58
●A123.56.42.1302026-03-11 → 2026-03-25 · 2 obs
● 2026-03-25 18:55:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net... | - |
| math200.com | dns29.hichina.com, dns30.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.39
NS records: dns29.hichina.com, dns30.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for math200.com (unsigned zone)
⏱️ Timing
Total: 495ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 123.56.42.130 |
| NS | 2 | dns30.hichina.com, dns29.hichina.com |
| SOA | 1 | dns29.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns29.hichina.com, dns29.hichina.com, dns29.hichina.com...)
Analysis
IP Addresses
math200.com points to an IP address: 123.56.42.130.
Name Servers
Two name servers dns29.hichina.com and dns30.hichina.com handle the delegation for math200.com.
math200.com shares the same name server setup as other domains, for instance xiehui.mobi, zhaobiaoyucaigou.cn, xtingc.com, morsunlight.com and pianotx.com.
math200.com at least partially shares name servers with other domains, for instance cgsk.com, promru.com, abay.cn, soqis.com and 0id.cn.
These name servers are commonly used with ns1.alidns.com and ns2.alidns.com.
Host names with nine IP numbers:
dns29.hichina.com points to: 2408:4009:501::37, 39.96.153.39, 39.96.153.59, 47.118.199.199, 47.118.199.219, 120.76.107.39, 120.76.107.59, 139.224.142.99 and 139.224.142.109.
dns30.hichina.com points to: 2408:4009:501::38, 39.96.153.37, 39.96.153.62, 47.118.199.197, 47.118.199.221, 120.76.107.37, 120.76.107.62, 139.224.142.102 and 139.224.142.107.