104.21.75.77
The IP address 104.21.75.77 belongs to Cloudflare, Inc. (ASN 13335) and functions as a CDN and web server within the 104.16.0.0/12 block. Services on ports 80, 443, 8080, and 8443 were observed, with a "cloudflare" server banner.
Reputation scoring classified the address as Low Risk (Score: 30). No specific threat indicators, known attacker flags, or spam source classifications were present. However, the IP was listed on one of eight DNSBLs. Behavioral analysis recorded zero honeypot hits, enumeration strikes, or WAF violations. The 104.21.75.0/24 neighborhood was classified as clean with an abuse density of zero.
Recommendations indicated a rate-limit action due to moderate risk criteria. Data freshness confirmed active observation through September 2026.
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 | 40% | 2 | 7 |
| routing | 13% | 1 | 1 |
| services | 38% | 2 | 5 |
| ownership | 27% | 2 | 3 |
| reputation | 22% | 1 | 3 |
| geolocation | 33% | 2 | 4 |
| Overall | 29% | 10 | 23 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-09 12:51:17 UTC |
| Last Seen | 2026-09-24 17:12:31 UTC |
| Profile Built | 2026-09-24 17:23:14 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 37 |
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