104.18.21.226
IP 104.18.21.226 was observed on 2026-09-16 with a Low Risk reputation score of 30. Ownership records identify the address as belonging to Cloudflare, Inc. (ASN 13335) within the 104.16.0.0/12 CIDR block. Geolocation data placed the host in New York, US. Service analysis revealed open TCP ports 80, 443, 8080, and 8443, with a server banner identifying the infrastructure as Cloudflare.
Threat indicators showed no association with known attacker campaigns, spam sources, or Tor exit nodes. The neighborhood classification for the 104.18.21.0/24 subnet was clean, with zero threat siblings recorded. Control plane data indicated one DNSBL listing among eight total lists.
Risk assessment recommended rate-limiting actions due to moderate risk context. Suggested mitigation included limiting traffic to 5 requests per minute via firewall rules compatible with iptables, nginx, and pf.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Cloudflare, Inc. |
| ASN | AS13335 |
| Network Name | CLOUDFLARENET |
| CIDR Block | 104.16.0.0/12 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 0% (None) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| 8080 | http-alt | tcp | — |
| 8443 | https-alt | tcp | — |
| Closed Ports | 22, 25, 3389 (4 open / 7 scanned) | ||
| Server | cloudflare |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 33% | 2 | 6 |
| routing | 13% | 1 | 1 |
| services | 27% | 2 | 4 |
| ownership | 27% | 2 | 3 |
| reputation | 22% | 1 | 4 |
| geolocation | 27% | 2 | 3 |
| Overall | 25% | 10 | 21 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-07 21:59:45 UTC |
| Last Seen | 2026-09-24 22:34:26 UTC |
| Profile Built | 2026-09-24 23:14:59 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 39 |
Full dossier details are available via our API.