concept21.com - robtex.com
concept21.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=1781517425 | ||||||
Same first word
concept21.com.ua |
concept21.nl |
concept21.co.jp |
concept21.de |
concept21.com |
concept21.fr |
concept21.net |
concept21.ch |
Similar names
DNS History
10 records (5 active, 5 former)
●NSdns1.namecheaphosting.com2026-04-21 → 2026-06-15 · 3 obs
● 2026-04-21 19:15:52
● 2026-06-15 10:10:36
●NSdns2.namecheaphosting.com2026-04-21 → 2026-06-15 · 3 obs
● 2026-04-21 19:15:52
● 2026-06-15 10:10:36
○NSns09.domaincontrol.com2015-06-02 → 2016-11-13 · 4 obs
● 2016-11-13 05:54:24
○ 2026-04-21 19:15:52
○ 2026-06-15 10:10:36
○NSns10.domaincontrol.com2015-06-02 → 2016-11-13 · 4 obs
● 2016-11-13 05:54:24
○ 2026-04-21 19:15:52
○ 2026-06-15 10:10:36
○MXmailstore1.secureserver.net2015-06-02 → 2016-11-13 · 4 obs
● 2016-11-13 05:54:24
○ 2026-04-21 19:15:52
○ 2026-06-15 10:10:36
●MXmx1.privateemail.com2026-04-21 → 2026-06-15 · 3 obs
● 2026-04-21 19:15:52
● 2026-06-15 10:10:36
●MXmx2.privateemail.com2026-04-21 → 2026-06-15 · 3 obs
● 2026-04-21 19:15:52
● 2026-06-15 10:10:36
○MXsmtp.secureserver.net2015-06-02 → 2016-11-13 · 4 obs
● 2016-11-13 05:54:24
○ 2026-04-21 19:15:52
○ 2026-06-15 10:10:36
●A162.213.255.532026-04-21 → 2026-06-15 · 3 obs
● 2026-04-21 19:15:52
● 2026-06-15 10:10:36
○A50.62.218.2362015-06-02 → 2016-11-13 · 4 obs
● 2016-11-13 05:54:24
○ 2026-04-21 19:15:52
○ 2026-06-15 10:10:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net... | - |
| concept21.com | dns1.namecheaphosting.com, dns2.namecheaphosting.com | 4 records |
✅ Authoritative Response
Server:156.154.132.200
NS records: dns1.namecheaphosting.com, dns2.namecheaphosting.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for concept21.com (unsigned zone)
⏱️ Timing
Total: 136ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.213.255.53 |
| NS | 2 | dns1.namecheaphosting.com, dns2.namecheaphosting.com |
| MX | 2 | mx1.privateemail.com (pri: 10), mx2.privateemail.com (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +ip4:162.213.255.50 +ip4:1 |
| SOA | 1 | dns1.namecheaphosting.com cpanel.tech.na |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (dns1.namecheaphosting.com, dns1.namecheaphosting.com, dns2.namecheaphosting.com...)
Analysis
IP Addresses
concept21.com has exactly one IP address — 162.213.255.53.
mail.yomiprof.net, server148-3.web-hosting.com, indiecut.com plus two other host names have IP numbers in common with concept21.com.
Name Servers
concept21.com is served by two delegated name servers, dns1.namecheaphosting.com and dns2.namecheaphosting.com.
The name server configuration of concept21.com is shared with other domains, for instance blackmagicamal.com, ispebbleshipping.com, titandealsvc.com and two others.
Some name servers delegated to concept21.com are also used by other domains, notably rotaryrajdhani.com.np and toyota-zm.com.
Each of the two host names carries two IP addresses: dns1.namecheaphosting.com points to 156.154.132.200 and 2610:a1:1024::200, and dns2.namecheaphosting.com points to 156.154.133.200 and 2610:a1:1025::200.
Mail Servers
concept21.com uses two mail servers, mx1.privateemail.com and mx2.privateemail.com.
The mail server setup of concept21.com matches that of other domains such as rui.com, anthonycosta.dev, yardmaterial.com and two others.
There is at least a partial overlap in mail servers between concept21.com and other domains like eltromax.com, comi.mobi and gymlease.com.
mx1.privateemail.com → 162.255.118.7 and mx2.privateemail.com → 162.255.118.8: one IP number per host name.