51.161.65.65
IP Intelligence Briefing: 51.161.65.65
*Generated via IPDebrief Network Intelligence Tools*
---
**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership: Owned by Dmytro, Ahrefs Pte Ltd (OVH network, ASN 16276).
- Geolocation: Montreal, Quebec, Canada (ARIN-regulated).
- Network Role: CloudCompute infrastructure (OVH-hosted).
- Threat Indicators: No malicious activity detected (no indicators, blacklist hits, or campaigns).
---
**2. Observation History**
- Recent Activity:
- DNS records resolve to `proxy-ca011-san65.ahrefs.net` (Ahrefs subdomain).
- DNSSEC and CAA records validated; no DNSBL listings.
- BGP stability: Route stability score 0.2174 (Minimal risk).
- Temporal Trends: No persistent malicious behavior; threat observation count is 0.
---
**3. Relationships**
- Linked Entities:
- Hostname: `proxy-ca011-san65.ahrefs.net` (Ahrefs subdomain).
- Network: Subnet `51.161.65.0/24` (OVH customer network).
- Certificates: Valid TLS certificate (no details provided).
- No Known Threat Associations: No campaigns, honeypot hits, or malicious banners detected.
---
**4. Neighborhood Analysis**
- Subnet: `51.161.65.0/24` (227 total IPs).
- Risk Distribution:
- 73 IPs with Medium Risk (25–50 score), 27 Low Risk (<25).
- Abuse Density: 0.2379 (moderate risk in subnet).
- Notable Neighbors:
- IPs with high risk scores (e.g., 50) in the subnet.
---
**5. Actionable Insights**
- No Immediate Threat: The IP itself is low risk but resides in a subnet with mixed risk.
- Monitor Subnet: Track activity in `51.161.65.0/24` for anomalies.
- Verify DNS: Confirm `proxy-ca011-san65.ahrefs.net` is legitimate (Ahrefs is a known CDN).
- Firewall Considerations:
- Allow traffic to the IP if required for legitimate operations.
- Consider restricting access to the subnet if high-risk neighbors are present.
---
Conclusion: This IP is associated with a legitimate cloud provider (Ahrefs) and shows no malicious indicators. However, the broader subnet contains a mix of risk levels, warranting closer monitoring. No immediate mitigation required, but maintain vigilance against potential lateral movement or subnet-wide threats.
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-san65.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca011-san65.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 | 33% | 2 | 3 |
| Overall | 28% | 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 22:53:20 UTC |
| Profile Built | 2026-06-29 04:57:03 UTC |
| Data Freshness | Live |
| Signal Types | 25 |
| Total Observations | 27 |
Full dossier details are available via our API.