httpscyberintel-challenge.ctfd.io - dns.ninja
httpscyberintel-challenge.ctfd.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.55.122.20🇺🇸 DIGITALOCEAN45.55.120.0/22 DigitalOcean | ||||||
| A | 138.197.58.222🇺🇸 DIGITALOCEAN138.197.56.0/22 DigitalOcean | ||||||
| A | 165.227.251.182🇺🇸 DIGITALOCEAN165.227.248.0/22 DigitalOcean | ||||||
| A | 165.227.251.183🇺🇸 DIGITALOCEAN165.227.248.0/22 DigitalOcean | ||||||
ctfd.io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700:3032::ac43:b99f🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:134a🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.19.74Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.185.159🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | terry.ns.cloudflare.com ⭐ | ||||||
| NS | tia.ns.cloudflare.com | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| MX | alt1.aspmx.l.google.com(5) | ||||||
| MX | alt2.aspmx.l.google.com(5) | ||||||
| MX | alt3.aspmx.l.google.com(10) | ||||||
| MX | alt4.aspmx.l.google.com(10) | ||||||
| TXT | _globalsign-domain-verification=K_qhC_2EDvkHfYVUPa6plCAEZ1HqgE1zeZ8WlIYhG2 | ||||||
| TXT | google-site-verification=PykwEd8fOjxQnmuFFtGBiPZGz6HNRJS5taz62m0eHlU | ||||||
| TXT | google-site-verification=q_TuVZrunT_0JwNgUlu3GoAsanbBPyYMeo5E0Z6e23Y | ||||||
| TXT | v=spf1 a mx include:_spf.google.com include:helpscoutemail.com ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.19.74, 172.67.185.159 | ||||||
| IPv6 hints | 2606:4700:3032::ac43:b99f, 2606:4700:3036::6815:134a | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=162, name=cloudflare-ech.com | ||||||
| SOA | terry.ns.cloudflare.comdns@cloudflare.com serial=2409173037 | ||||||
rank #877 in the tld
📈 Tranco rank: #227,316
DNS History
4 records (4 active, 0 former)
●A138.197.58.2222026-03-01 → 2026-07-22 · 2 obs
● 2026-03-01 15:51:52
● 2026-07-22 23:55:44
● 2026-07-22 23:55:44
●A165.227.251.1822026-03-01 → 2026-07-22 · 2 obs
● 2026-03-01 15:51:52
● 2026-07-22 23:55:44
● 2026-07-22 23:55:44
●A165.227.251.1832026-03-01 → 2026-07-22 · 2 obs
● 2026-03-01 15:51:52
● 2026-07-22 23:55:44
● 2026-07-22 23:55:44
●A45.55.122.202026-03-01 → 2026-07-22 · 2 obs
● 2026-03-01 15:51:52
● 2026-07-22 23:55:44
● 2026-07-22 23:55:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | c0.nic.io, b0.nic.io, a0.nic.io, a2.nic.io | - |
| ctfd.io | tia.ns.cloudflare.com, terry.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.229
NS records: tia.ns.cloudflare.com, terry.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 297ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 138.197.58.222, 165.227.251.182... |
Analysis
IP Addresses
httpscyberintel-challenge.ctfd.io points to the four IP addresses 45.55.122.20, 138.197.58.222, 165.227.251.182 and 165.227.251.183.
Among the host names that share IP numbers with httpscyberintel-challenge.ctfd.io are reconvillage.ctfd.io, ncfi.ctfd.io, jerseyctf.ctfd.io and two others.