cdthink.com - dns.ninja
cdthink.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=1783808442 | ||||||
Same first word
cdthink.com |
Similar names
DNS History
12 records (5 active, 7 former)
●NSf1g1ns1.dnspod.net2026-04-04 → 2026-07-11 · 3 obs
● 2026-04-04 18:41:26
● 2026-07-11 22:31:16
●NSf1g1ns2.dnspod.net2026-04-04 → 2026-07-11 · 3 obs
● 2026-04-04 18:41:26
● 2026-07-11 22:31:16
○NSns10.cdncenter.com2015-05-29 → 2017-06-29 · 4 obs
● 2017-06-29 09:21:50
○ 2026-04-04 18:41:26
○ 2026-07-11 22:31:16
○NSns11.cdncenter.com2015-05-29 → 2017-06-29 · 4 obs
● 2017-06-29 09:21:50
○ 2026-04-04 18:41:26
○ 2026-07-11 22:31:16
○NSns12.cdncenter.com2015-05-29 → 2017-06-29 · 4 obs
● 2017-06-29 09:21:50
○ 2026-04-04 18:41:26
○ 2026-07-11 22:31:16
○NSns7.cdncenter.com2015-05-29 → 2017-06-29 · 4 obs
● 2017-06-29 09:21:50
○ 2026-04-04 18:41:26
○ 2026-07-11 22:31:16
○NSns8.cdncenter.com2015-05-29 → 2017-06-29 · 4 obs
● 2017-06-29 09:21:50
○ 2026-04-04 18:41:26
○ 2026-07-11 22:31:16
○NSns9.cdncenter.com2015-05-29 → 2017-06-29 · 4 obs
● 2017-06-29 09:21:50
○ 2026-04-04 18:41:26
○ 2026-07-11 22:31:16
●A119.91.21.852026-04-04 → 2026-07-11 · 3 obs
● 2026-04-04 18:41:26
● 2026-07-11 22:31:16
○A210.209.112.1222015-05-29 → 2017-06-29 · 4 obs
● 2017-06-29 09:21:50
○ 2026-04-04 18:41:26
○ 2026-07-11 22:31:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net... | - |
| cdthink.com | f1g1ns1.dnspod.net, f1g1ns2.dnspod.net | - |
✅ Authoritative Response
Server:220.196.136.35
NS records: f1g1ns1.dnspod.net, f1g1ns2.dnspod.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cdthink.com (unsigned zone)
⏱️ Timing
Total: 672ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 119.91.21.85 |
| 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
cdthink.com has exactly one IP address — 119.91.21.85.
Name Servers
cdthink.com is delegated to two name servers: f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.
The name server configuration of cdthink.com is shared with other domains, for instance steamg.com, jjepb.cn, nbanner.com and two others.
There is at least partial name server overlap between cdthink.com and other domains — ggfei.com, tronscan-app.com, bbfdinx14.icu and two more among them.
The name servers a.dnspod.com, c.dnspod.com and b.dnspod.com are often found in combination with these name servers.
Hosts with 8 IP addresses each:
f1g1ns2.dnspod.net resolves to 1.12.0.1, 1.13.76.35, 36.155.149.35 and 5 other IP addresses.
Hosts with 7 IP addresses each:
f1g1ns1.dnspod.net resolves to 1.12.0.4, 1.14.119.35, 111.13.13.35 and 4 other IP addresses.
Mail Servers
cdthink.com uses two mail servers, mxbiz1.qq.com and mxbiz2.qq.com.
The mail server setup of cdthink.com matches that of other domains such as vertrip.com, jbu.com.cn, miduwang.com and two others.
cdthink.com and a number of other domains — chinanurse.cn, csmjzs.com, csepdi.com and cmyynet.com among them — share at least some of the same mail servers.