duo-ctf.com - robtex.com
duo-ctf.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=1786942869 | ||||||
Same first word
duo-ctf.com |
DNS History
5 records (2 active, 3 former)
●NSdns1.cscdns.net2016-12-15 → 2026-08-17 · 2 obs
● 2026-08-17 05:16:06
●NSdns2.cscdns.net2016-12-15 → 2026-08-17 · 2 obs
● 2026-08-17 05:16:06
○MXcustmx.cscdns.net2016-12-15 → 2018-09-03 · 4 obs
● 2018-09-03 05:42:58
○ 2026-03-31 14:06:38
○ 2026-08-17 05:16:06
○A165.160.13.202016-12-15 → 2018-09-03 · 4 obs
● 2018-09-03 05:42:58
○ 2026-03-31 14:06:38
○ 2026-08-17 05:16:06
○A165.160.15.202016-12-15 → 2018-09-03 · 4 obs
● 2018-09-03 05:42:58
○ 2026-03-31 14:06:38
○ 2026-08-17 05:16:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| duo-ctf.com | dns1.cscdns.net, dns2.cscdns.net | - |
✅ Authoritative Response
Server:156.154.130.100
NS records: dns1.cscdns.net, dns2.cscdns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duo-ctf.com (unsigned zone)
⏱️ Timing
Total: 2206ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
duo-ctf.com is served by two delegated name servers, dns1.cscdns.net and dns2.cscdns.net.
duo-ctf.com shares its NS records with other domains, for example electronicpigeonhole.com, altstyleandesign.com, loanprospector.net and two others.
duo-ctf.com shares at least some of its name servers with other domains, including morganstanely.se, cahootloans.net, cares-bofa.com and two others.
These name servers are frequently paired with the name servers ns101.bac.com and ns102.bac.com.
Each of the two host names carries two IP addresses: dns1.cscdns.net points to 156.154.130.100 and 2610:a1:1022::100, and dns2.cscdns.net points to 156.154.131.100 and 2610:a1:1023::100.