51.161.65.179
IP Intelligence Briefing: 51.161.65.179
*Generated via IPDebrief Analysis*
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership: Owned by OVH-CUST-281059690 (Dmytro, Ahrefs Pte Ltd, ARIN)
- Geolocation: Montreal, Quebec, Canada (51.161.65.0/24 subnet)
- Network Role: CloudCompute infrastructure (OVH hosting)
- Threat Indicators: No malicious activity detected; no known attackers, spam, or Tor exit nodes.
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**2. Observation History**
- Recent Activity:
- Observed as a cloud-hosted server (OVH) with no persistent threats.
- DNS records resolve to `proxy-ca011-san179.ahrefs.net` (Ahrefs domain).
- No changes in risk scores or network behavior over the last 30 days.
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**3. Network Relationships**
- Linked Entities:
- Subnet: 51.161.65.0/24 (OVH infrastructure)
- Related domains: `ahrefs.net` (DNS records).
- Subnet Analysis:
- Abuse Density: 45.97% (moderate risk).
- Neighbor Risk: 77 medium-risk IPs, 23 low-risk IPs in the subnet.
- High-Risk Neighbors: Several IPs with risk scores ≥50.
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**4. Threat Context**
- No Direct Threats: The IP itself shows no signs of malicious activity (no blacklists, spam, or campaigns).
- Subnet Risk: While the IP is low risk, the subnet has a moderate abuse density. Monitor for lateral movement or compromised neighbors.
- Provider Context: OVH is a legitimate cloud provider, but the subnet includes mixed-use infrastructure (hosting, CDN, etc.).
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**5. Recommendations**
- SOC Actions:
- Monitor the 51.161.65.0/24 subnet for unusual traffic patterns or increased risk scores.
- Validate DNS records (`ahrefs.net`) for potential spoofing or misconfiguration.
- Consider isolating high-risk neighbors in the subnet to mitigate potential lateral movement.
- Firewall Rules: No immediate blocking required for this IP, but ensure subnet-level monitoring is in place.
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*End of Briefing*
*Generated by IPDebrief | © 2026 Jason Alberino*
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-san179.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca011-san179.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 | |||
| 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 | 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%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:25 UTC |
| Last Seen | 2026-06-27 06:24:05 UTC |
| Profile Built | 2026-06-28 00:27:32 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 29 |
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