ctfsystems.com - dns.ninja
ctfsystems.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=1786405159 | ||||||
Subdomains
mail.ctfsystems.com |
Same first word
ctfsystems.com |
Similar names
DNS History
11 records (7 active, 4 former)
○NSdns1.namecheaphosting.com2026-03-14 → 2026-03-14 · 2 obs
○ 2026-08-11 00:02:06
●NSdns1.registrar-servers.com2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 00:02:06
○NSdns2.namecheaphosting.com2026-03-14 → 2026-03-14 · 2 obs
○ 2026-08-11 00:02:06
●NSdns2.registrar-servers.com2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 00:02:06
●MXeforward1.registrar-servers.com2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 00:02:06
●MXeforward2.registrar-servers.com2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 00:02:06
●MXeforward3.registrar-servers.com2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 00:02:06
●MXeforward4.registrar-servers.com2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 00:02:06
●MXeforward5.registrar-servers.com2026-08-11 → 2026-08-11 · 2 obs
● 2026-08-11 00:02:06
○MXmail.ctfsystems.com2026-03-14 → 2026-03-14 · 2 obs
○ 2026-08-11 00:02:06
○A162.0.235.1442026-03-14 → 2026-03-14 · 2 obs
○ 2026-08-11 00:02:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net, f.gtld-servers.net... | - |
| ctfsystems.com | dns1.registrar-servers.com, dns2.registrar-servers.com | 4 records |
✅ Authoritative Response
Server:156.154.132.200
NS records: dns1.registrar-servers.com, dns2.registrar-servers.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctfsystems.com (unsigned zone)
⏱️ Timing
Total: 141ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns1.registrar-servers.com, dns2.registrar-servers.com |
| MX | 5 | eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10... |
| TXT | 1 | v=spf1 include:spf.efwd.registrar-server |
| SOA | 1 | dns1.registrar-servers.com hostmaster.re |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (dns1.registrar-servers.com, dns1.registrar-servers.com, dns2.registrar-servers.com...)
Analysis
Hierarchy
ctfsystems.com is a parent domain of mail.ctfsystems.com.
Name Servers
ctfsystems.com is served by two delegated name servers, dns1.registrar-servers.com and dns2.registrar-servers.com.
ctfsystems.com shares its NS records with other domains, for example ssonlinebd.com, sygneo.com, greenvines.net and two others.
The DNS delegation for ctfsystems.com at least partly coincides with that of other domains, saludawildlife.net being one example.
Each of the two host names carries two IP addresses: dns1.registrar-servers.com points to 156.154.132.200 and 2610:a1:1024::200, and dns2.registrar-servers.com points to 156.154.133.200 and 2610:a1:1025::200.
Mail Servers
Mail for ctfsystems.com is handled by five mail servers, namely eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.
There is at least a partial MX overlap between ctfsystems.com and other domains, including legacyobject.com, crumblingfoundationsct.com, leoshaw.com and two others.
eforward4.registrar-servers.com, eforward5.registrar-servers.com, eforward6.registrar-servers.com and eforward7.registrar-servers.com are mail servers that frequently appear together with these mail servers.
Host names that point to one IP address:
eforward1.registrar-servers.com points to the IP address 162.255.118.51.
eforward2.registrar-servers.com points to the IP address 162.255.118.52.
eforward3.registrar-servers.com points to the IP address 162.255.118.51.
eforward4.registrar-servers.com points to the IP address 162.255.118.52.
eforward5.registrar-servers.com points to the IP address 162.255.118.51.
Each of eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com resolves to 162.255.118.51.
These two host names — eforward2.registrar-servers.com and eforward4.registrar-servers.com — each point to 162.255.118.52 IP addresses.