dfsec-ctf.com - robtex.com
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dfsec-ctf.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 165.227.251.182🇺🇸 DIGITALOCEAN | ||||||
| A | 165.227.251.183🇺🇸 DIGITALOCEAN | ||||||
| NS | ns-392.awsdns-49.com ⭐ | ||||||
| A | 2600:9000:5301:8800::1🇺🇸 Amazon | ||||||
| PTR | ns-392.awsdns-49.com | ||||||
| A | 205.251.193.136🇺🇸 Amazon | ||||||
| PTR | ns-392.awsdns-49.com | ||||||
| NS | ns-1351.awsdns-40.org | ||||||
| A | 2600:9000:5305:4700::1🇺🇸 Amazon | ||||||
| PTR | ns-1351.awsdns-40.org | ||||||
| A | 205.251.197.71🇺🇸 Amazon | ||||||
| PTR | ns-1351.awsdns-40.org | ||||||
| NS | ns-1616.awsdns-10.co.uk | ||||||
| A | 2600:9000:5306:5000::1🇺🇸 Amazon | ||||||
| PTR | ns-1616.awsdns-10.co.uk | ||||||
| A | 205.251.198.80🇺🇸 Amazon | ||||||
| PTR | ns-1616.awsdns-10.co.uk | ||||||
| NS | ns-936.awsdns-53.net | ||||||
| A | 2600:9000:5303:a800::1🇺🇸 Amazon | ||||||
| PTR | ns-936.awsdns-53.net | ||||||
| A | 205.251.195.168🇺🇸 Amazon | ||||||
| PTR | ns-936.awsdns-53.net | ||||||
| SOA | ns-392.awsdns-49.comawsdns-hostmaster@amazon.com serial=1 | ||||||
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=1771291435 | ||||||
Same first word
dfsec-ctf.com |
DNS History
6 records (6 active, 0 former)
●NSns-1351.awsdns-40.org2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 22:44:16
●NSns-1616.awsdns-10.co.uk2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 22:44:16
●NSns-392.awsdns-49.com2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 22:44:16
●NSns-936.awsdns-53.net2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 22:44:16
●A165.227.251.1822026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 22:44:16
●A165.227.251.1832026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 22:44:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dfsec-ctf.com | ns-392.awsdns-49.com, ns-936.awsdns-53.net, ns-1616.awsdns-10.co.uk, ns-1351.awsdns-40.org | - |
✅ Authoritative Response
Server: 205.251.197.71
NS records: ns-392.awsdns-49.com, ns-936.awsdns-53.net, ns-1616.awsdns-10.co.uk, ns-1351.awsdns-40.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dfsec-ctf.com (unsigned zone)
⏱️ Timing
Total: 131ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 165.227.251.182, 165.227.251.183 |
| NS | 4 | ns-1351.awsdns-40.org, ns-1616.awsdns-10.co.uk... |
| SOA | 1 | ns-392.awsdns-49.com awsdns-hostmaster.a |
AI analysis
dfsec-ctf.com points to two IPs: 165.227.251.182 and 165.227.251.183.
Other host names, for instance vera.codes, reconvillage.ctfd.io, ncfi.ctfd.io, reversing.ctfd.io and challenges.ctfd.io share IP numbers with dfsec-ctf.com.
dfsec-ctf.com is delegated to four name servers: ns-392.awsdns-49.com, ns-936.awsdns-53.net, ns-1351.awsdns-40.org and ns-1616.awsdns-10.co.uk.
dfsec-ctf.com at least partially shares name servers with other domains such as montieco.com, gruposestini.com.br, teamplify.org, artinbloomstudio.com and blissfulbloomsflorist.com.
These name servers are commonly used with ns-1259.awsdns-29.org and ns-1819.awsdns-35.co.uk.
Host names with two IP numbers:
ns-392.awsdns-49.com points to 2600:9000:5301:8800::1 and 205.251.193.136
ns-936.awsdns-53.net points to 2600:9000:5303:a800::1 and 205.251.195.168
ns-1351.awsdns-40.org points to 2600:9000:5305:4700::1 and 205.251.197.71
ns-1616.awsdns-10.co.uk points to 2600:9000:5306:5000::1 and 205.251.198.80