gradesec.com - robtex.com
gradesec.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=1774431112 | ||||||
Same first word
gradesec.com |
Similar names
DNS History
5 records (5 active, 0 former)
●NSf1g1ns1.dnspod.net2026-03-21 → 2026-03-25 · 2 obs
● 2026-03-25 09:34:16
●NSf1g1ns2.dnspod.net2026-03-21 → 2026-03-25 · 2 obs
● 2026-03-25 09:34:16
●A49.235.132.1282026-03-21 → 2026-03-25 · 2 obs
● 2026-03-25 09:34:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| gradesec.com | f1g1ns1.dnspod.net, f1g1ns2.dnspod.net | - |
✅ Authoritative Response
Server:1.14.119.35
NS records: f1g1ns1.dnspod.net, f1g1ns2.dnspod.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for gradesec.com (unsigned zone)
⏱️ Timing
Total: 3810ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.235.132.128 |
| NS | 2 | f1g1ns2.dnspod.net, f1g1ns1.dnspod.net |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mail.qq.com -all |
| SOA | 1 | f1g1ns1.dnspod.net freednsadmin.dnspod.c |
Analysis
IP Addresses
gradesec.com points to a single IP number: 49.235.132.128.
Name Servers
Delegation for gradesec.com rests with two name servers, f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.
gradesec.com shares the same name server setup as other domains, including guanfu.net.cn, conderon.com, exrcloud.com, weloled.com and yrsw.com.cn.
gradesec.com at least partially shares name servers with other domains, for instance o2lnq.icu, workinggo.com, neutralmarlservices.com, adayotsp.com and yynusfsx14.icu.
these name servers are commonly used with a.dnspod.com, c.dnspod.com and b.dnspod.com.
Host names with eight IP numbers:
f1g1ns2.dnspod.net points to: 2402:4e00:111:fff::c, 1.12.0.1, 1.13.76.35, 36.155.149.35, 101.227.168.35, 106.39.207.235, 111.206.98.235 and 220.196.136.35.
Host names with seven IP numbers:
f1g1ns1.dnspod.net points to: 2402:4e00:1470:2::e, 1.12.0.4, 1.14.119.35, 111.13.13.35, 117.135.128.235, 125.94.59.235 and 163.177.5.35.
Mail Servers
gradesec.com is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.
gradesec.com uses the same mail server configuration as other domains, such as nawotech.com, btstc.com, ouv.com.cn, cbob.cn and qingsu.com.
gradesec.com shares mail servers with other domains at least in part, for instance wshuttle.com, cqm.cn, dawnedu.com.cn, cshnkj.com and cnbaiyun.cn.