51.161.65.10
IP Intelligence Briefing: 51.161.65.10/32
Date: 2026-06-04
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**1. Core Profile**
- Risk Score: Moderate (50/100)
- Provider: OVH (AS16276)
- Ownership: Dmytro, Ahrefs Pte Ltd (OVH-CUST-281059690)
- Geolocation:
- Country: Canada (CA)
- City: Singapore (latitude 56.13, longitude -106.35)
- Accuracy Radius: 3,000 km
- Network Role: Cloud infrastructure (OVH Hosting)
- Threat Indicators: No malicious activity detected (no indicators, blacklists, or campaigns).
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**2. Observation History (30-Day Trend)**
- Stability: Stable (no significant changes in risk or geolocation).
- Geolocation Consistency: Conflicting data (Canada vs. Singapore).
- Subnet Abuse Density: 27.94% (mixed classification, 69 threat siblings in 51.161.65.0/24).
- Provider Risk: Minimal (operator score: 0.2174).
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**3. Network Relationships**
- Linked Entities:
- Subnet: 51.161.65.0/24 (OVH-CUST-281059690)
- Hostname: `proxy-ca011-san10.ahrefs.net` (DNS PTR record).
- Connections: No direct links to known malicious domains, organizations, or certificates.
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**4. Subnet Neighbors**
- Subnet: 51.161.65.0/24 (247 total IPs, 110 active).
- Risk Distribution:
- 33 medium-risk IPs (25–50 score).
- 66 low-risk IPs (0–25 score).
- Notable Neighbors:
- 51.161.65.0: Risk score 25.
- 51.161.65.1: Risk score 25.
- 51.161.65.2: Risk score 25.
- Abuse Density: 0.2794 (moderate risk concentration).
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**5. Actionable Insights**
- Monitor Subnet: Track neighboring IPs (especially medium-risk siblings) for behavioral changes.
- Verify Geolocation: Investigate conflicting location data (Canada vs. Singapore) for potential spoofing or misconfiguration.
- Cloud Infrastructure: Confirm OVH-hosted services are legitimate (Ahrefs is a legitimate cybersecurity company).
- No Immediate Mitigation: No direct threats detected, but subnet-level monitoring is recommended.
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Summary: 51.161.65.10 is a low-risk cloud server under OVH, owned by Ahrefs. While no direct malicious activity is observed, the subnet has a moderate abuse density. SOC teams should monitor neighbors and verify geolocation anomalies.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059690 |
| CIDR Block | 51.161.65.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca011-san10.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca011-san10.ahrefs.net |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| 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 | 28% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 15% | 2 | 2 |
| reputation | 27% | 1 | 3 |
| geolocation | 23% | 2 | 2 |
| Overall | 19% | 9 | 12 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-11 08:59:07 UTC |
| Last Seen | 2026-06-27 19:21:26 UTC |
| Profile Built | 2026-06-28 13:28:00 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 23 |
Full dossier details are available via our API.