math.cc - robtex.com
math.cc
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.198.79.1🇺🇸 Amazon216.198.79.0/24 EC2 Prefix | ||||||
| NS | dns7.hichina.com ⭐ | ||||||
| A | 2408:4009:501::15🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.43🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.63🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.203🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.213🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.43🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.63🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.113🇨🇳 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 | 139.224.142.123🇨🇳 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 | dns8.hichina.com | ||||||
| A | 2408:4009:501::16🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.44🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.54🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.204🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.214🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.44🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.54🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.114🇨🇳 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 | 139.224.142.124🇨🇳 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) | ||||||
| SOA | dns7.hichina.comhostmaster@hichina.com 2026-08-26 #16 | ||||||
cc
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ac1.nstld.com ⭐ | ||||||
| NS | ac2.nstld.com | ||||||
| NS | ac3.nstld.com | ||||||
| NS | ac4.nstld.com | ||||||
| SOA | ac1.nstld.cominfo@verisign-grs.com serial=1792990875 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
5 records (5 active, 0 former)
●NSdns7.hichina.com2026-09-23 → 2026-10-26 · 2 obs
● 2026-10-26 05:39:48
●NSdns8.hichina.com2026-09-23 → 2026-10-26 · 2 obs
● 2026-10-26 05:39:48
●MXmxbiz1.qq.com2026-09-23 → 2026-10-26 · 4 obs
○ 2026-10-17 02:22:58
● 2026-10-19 23:27:58
● 2026-10-26 05:39:48
●MXmxbiz2.qq.com2026-09-23 → 2026-10-26 · 4 obs
○ 2026-10-17 02:22:58
● 2026-10-19 23:27:58
● 2026-10-26 05:39:48
●A216.198.79.12026-09-23 → 2026-10-26 · 4 obs
○ 2026-10-17 02:22:58
● 2026-10-19 23:27:58
● 2026-10-26 05:39:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cc | ac2.nstld.com, ac4.nstld.com, ac1.nstld.com, ac3.nstld.com | 8 records |
| math.cc | dns7.hichina.com, dns8.hichina.com | - |
✅ Authoritative Response
Server:120.76.107.63
NS records: dns7.hichina.com, dns8.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for math.cc (unsigned zone)
⏱️ Timing
Total: 1590ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.198.79.1 |
| NS | 2 | dns7.hichina.com, dns8.hichina.com |
| MX | 2 | mxbiz2.qq.com (pri: 10), mxbiz1.qq.com (pri: 5) |
| SOA | 1 | dns7.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ac4.nstld.com, ac3.nstld.com, ac2.nstld.com...)
Analysis
IP Addresses
math.cc points to a single IP number: 216.198.79.1.
Additional host names — daimoncraft.com, mariussuessmilch.xyz, postmark.co.nz and two others — share IP numbers with math.cc.
Name Servers
The NS records for math.cc delegate to dns7.hichina.com and dns8.hichina.com.
math.cc shares its name server setup with other domains, including silu.co, kckxzunxsd.beer, toolxu.cn and two others.
math.cc has some name servers in common with other domains such as klddd.cn, qsnibzd.cn and aimeizhuyi.com
These name servers frequently co-occur with the name servers expirens3.hichina.com and expirens4.hichina.com.
Host names with 9 IP numbers:
dns7.hichina.com maps to 39.96.153.43, 39.96.153.63, 47.118.199.203 and 6 additional IP addresses.
dns8.hichina.com maps to 39.96.153.44, 39.96.153.54, 47.118.199.204 and 6 additional IP addresses.
Mail Servers
math.cc has two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.
math.cc shares the same mail server setup as other domains, including splin.cn, nbxhvip.com, paddingtonbear.com.cn and two others.
math.cc and a number of other domains — meljkx-tw.cyou, xmxmt.cn, bmyg.com.au and zrkhst-tw.asia among them — share at least some of the same mail servers.