IP Intelligence Briefing: 51.161.65.122
Date: 2026-06-09
---
**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Owner: Dmytro, Ahrefs Pte Ltd (OVH-CUST-281059690)
- Geolocation: Montreal, Quebec, Canada (CA)
- Network Role: CloudCompute (OVH infrastructure)
- Threat Indicators: No malicious activity detected (no blacklists, campaigns, or spam).
---
**2. Observation History (30-Day Trends)**
- Abuse Density: 54.33% (high abuse classification)
- Inherited Risk: 21 (subnet-level risk from neighbors)
- Threat Persistence: No persistent malicious activity.
- Key Signals:
- Subnet abuse density increased over time.
- No long-term threat persistence detected.
---
**3. Network Relationships**
- Linked Entities:
- Subnet: `51.161.65.0/24` (OVH-CUST-281059690)
- Hostnames: `proxy-ca011-san122.ahrefs.net` (DNS PTR record).
- Network Classification: High abuse subnet (`high_abuse`).
- Provider: OVH (AS16276).
---
**4. Neighborhood Analysis**
- Subnet: `51.161.65.122/24`
- Total Neighbors: 254
- Active Neighbors: 172
- Threat Neighbors: 138 (54.33% abuse density)
- Risk Distribution:
- 96 IPs: Medium Risk (40β50)
- 4 IPs: Low Risk
- 0 IPs: High Risk
---
**5. Actionable Insights**
- SOC Recommendation:
- Monitor the `51.161.65.0/24` subnet for abnormal traffic patterns due to high abuse density.
- Block high-risk neighbors (e.g., IPs with >50 risk score) if they exhibit suspicious behavior.
- Verify cloud compute instance security configurations (firewalls, IAM roles) to prevent unauthorized access.
- Threat Context: While the IP itself is clean, its subnetβs abuse density suggests potential for lateral movement or compromised hosts.
---
Tools Used: `ipdebrief_profile`, `ipdebrief_history`, `ipdebrief_relationships`, `ipdebrief_neighbors`.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ 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 | β |
π DNS Intelligence
| PTR | proxy-ca011-san122.ahrefs.net |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca011-san122.ahrefs.net |
π DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting β Infrastructure provider without advanced routing |
π 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 | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 24% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) β 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-21 21:00:51 UTC |
| Last Seen | 2026-06-28 16:10:36 UTC |
| Profile Built | 2026-06-29 04:14:37 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 23 |
Full dossier details are available via our API.