51.161.65.102
IP Intelligence Briefing: 51.161.65.102
Date: 2026-06-10
---
**1. Core Profile**
- Risk Assessment: Low Risk (Risk Score: 25/100). No threat indicators, malicious campaigns, or spam sources detected.
- Ownership:
- ISP: OVH (ASN 16276).
- Organization: Dmytro, Ahrefs Pte Ltd.
- Subnet: 51.161.65.0/24 (OVH-CUST-281059690).
- Geolocation:
- Country: Canada (CA) with a Singapore city label.
- Geo-Plausibility: False (RTT anomaly: 25ms vs. expected 121.6ms for 6082km distance).
- Coordinates: Latitude 56.13, Longitude -106.35 (approx. 3000km accuracy).
---
**2. Network & Threat Context**
- Network Role:
- CloudCompute infrastructure (OVH-hosted).
- No open ports, TLS certs, or HTTP services detected.
- Threat Indicators:
- No blacklists, spam, or malicious campaigns linked.
- DNS: Resolves to `proxy-ca011-san102.ahrefs.net` (Ahrefs domain).
- Abuse Risk:
- Subnet abuse density: 23.79% (mixed risk).
- 54 threat siblings in /24 subnet (71 medium-risk, 29 low-risk neighbors).
---
**3. Historical Observations (Last 30 Days)**
- Stability: Route stability score: 0.2174 (Minimal).
- Ownership Changes: No detected shifts in ownership.
- Threat Persistence: No persistent malicious activity observed.
---
**4. Relationships & Dependencies**
- DNS: Strong association with `ahrefs.net` (CAA records present).
- Network: Linked to OVH infrastructure; no CDN/VPN/Proxy indicators.
- Email: No SPF/DKIM records detected for `ahrefs.net`.
---
**5. Actionable Intelligence**
- Monitor:
- Track subnet neighbors (e.g., 51.161.65.4, 51.161.65.0) for escalating risk.
- Validate geolocation anomalies (potential spoofing or data center misclassification).
- Mitigation:
- No immediate firewall rules required (low-risk profile).
- Ensure DNSSEC and CAA records are enforced for `ahrefs.net`.
---
Conclusion: 51.161.65.102 is a low-risk, cloud-hosted IP associated with Ahrefs. While no direct threats are detected, its subnet contains mixed-risk neighbors, warranting continued monitoring. Geo-plausibility concerns suggest further verification of its location.
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-san102.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca011-san102.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 | Tier 3 — Basic operator with some routing infrastructure |
🔌 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 | 32% | 2 | 4 |
| routing | 27% | 2 | 3 |
| services | 15% | 2 | 2 |
| ownership | 30% | 3 | 3 |
| reputation | 32% | 1 | 3 |
| geolocation | 40% | 2 | 3 |
| Overall | 29% | 12 | 18 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-23 18:30:33 UTC |
| Last Seen | 2026-06-28 22:51:28 UTC |
| Profile Built | 2026-06-29 04:55:41 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 25 |
Full dossier details are available via our API.