qstheory.com - robtex.com
qstheory.com
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=1785237017 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSdns29.hichina.com2015-06-18 → 2026-07-28 · 2 obs
● 2026-07-28 11:17:48
●NSdns30.hichina.com2015-06-18 → 2026-07-28 · 2 obs
● 2026-07-28 11:17:48
●MXmxcom.263xmail.com2015-06-18 → 2026-07-28 · 2 obs
● 2026-07-28 11:17:48
●MXmxwcom.263xmail.com2015-06-18 → 2026-07-28 · 2 obs
● 2026-07-28 11:17:48
●A203.192.7.682015-06-18 → 2026-07-28 · 2 obs
● 2026-07-28 11:17:48
●A203.192.7.692015-06-18 → 2026-07-28 · 2 obs
● 2026-07-28 11:17:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, i.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net... | - |
| qstheory.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 qstheory.com (unsigned zone)
⏱️ Timing
Total: 596ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 203.192.7.69, 203.192.7.68 |
| NS | 2 | dns30.hichina.com, dns29.hichina.com |
| MX | 2 | mxwcom.263xmail.com (pri: 5), mxcom.263xmail.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.263.net -all |
| 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
qstheory.com points to the IP addresses 203.192.7.68 and 203.192.7.69
Other hosts including qstheory.cn, cngongji.cn and qstheory.net share IP addresses with qstheory.com.
Name Servers
The NS records for qstheory.com delegate to dns29.hichina.com and dns30.hichina.com.
qstheory.com shares its NS records with other domains, for example bphealth.com, hifaexpo.com, sharon-accessories.com and two others.
At least some of qstheory.com's name servers are shared with other domains, for example attr.cn, auata.cn, gamedo.mobi and two more.
These name servers are often deployed together with the name servers expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.
DNS names with 9 IP addresses:
dns29.hichina.com maps to 39.96.153.39, 39.96.153.59, 47.118.199.199 and 6 additional IP addresses.
dns30.hichina.com maps to 39.96.153.37, 39.96.153.62, 47.118.199.197 and 6 additional IP addresses.
Mail Servers
qstheory.com is served by two mail servers, mxcom.263xmail.com and mxwcom.263xmail.com.
Among the domains sharing a mail server setup with qstheory.com are chprt.com, fslifeng.com, be-walker.com and two others.
There is at least a partial MX overlap between qstheory.com and other domains, including litelander.com, runner-camp.com, coretests.com and two others.
Host names that resolve to four IP numbers:
mxcom.263xmail.com directs to 38.83.106.84, 38.83.106.85, 143.110.227.31 and 164.92.126.242.