209.191.65.51
The IP address 209.191.65.51 was identified as associated with Yahoo Holdings Inc. (ASN 10310) and assigned a Low Risk reputation with a risk score of 20. Ownership records indicated the address resides within the 209.191.64.0/18 CIDR block. Threat intelligence scans detected no known campaigns, blacklists, or active attacker indicators. Network analysis revealed the address as Firewalled with no open ports. DNS hygiene evaluation scored 80 with valid SPF and DMARC records. Geolocation data indicated the United States, but RTT measurements (95.2ms) contradicted the physical distance (7625.7km). Due to signal contradictions, the recommended action was to Monitor with Low severity.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Yahoo Holdings Inc. |
| ASN | AS10310 |
| Network Name | A-YAHOO-US3 |
| CIDR Block | 209.191.64.0/18 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | ae-10.pat2.gqb.yahoo.com |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | ae-10.pat2.gqb.yahoo.com |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | 2/2 domains |
| DMARC | 2/2 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Present |
| Domains Checked | 2 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| 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 | 4 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 27% | 2 | 3 |
| reputation | 13% | 1 | 2 |
| geolocation | 27% | 2 | 3 |
| Overall | 22% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-08 02:14:46 UTC |
| Last Seen | 2026-09-21 20:18:22 UTC |
| Profile Built | 2026-09-21 20:31:24 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 35 |
Full dossier details are available via our API.