51.195.215.217
IP Intelligence Briefing: 51.195.215.217
Date: 2026-06-18
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**1. Core Profile**
- Risk Score: Moderate (40/100)
- Ownership:
- ASN: 16276 (OVH)
- Organization: Ahrefs Pte Ltd
- Geolocation: London, UK (ENG)
- Network Role: Cloud Compute Hosting (OVH)
- Threat Indicators: No direct malicious activity detected (no indicators, blacklists, or campaigns).
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**2. Observation History**
- Recent Activity:
- Subnet abuse density: 0.6797 (high abuse classification).
- Inherited risk: 27 (from subnet).
- Threat siblings: 174/256 IPs in subnet flagged as high-risk.
- Trend: Consistent risk profile over 30 days; no significant changes.
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**3. Network Relationships**
- Linked Entities:
- Subnet: 51.195.215.217/24 (OVH infrastructure).
- DNS: PTR hostname `proxy-uk009-san217.ahrefs.net` (linked to Ahrefs).
- No direct ties to known malicious organizations or campaigns.
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**4. Neighborhood Analysis**
- Subnet Overview:
- Total IPs: 256 (24-bit subnet).
- Active IPs: 197 (77% utilization).
- High-Risk Neighbors: 174 IPs flagged (68% of subnet).
- Abuse Density: 67.97% (high-risk subnet).
- Notable Neighbors:
- 100+ IPs with risk scores ≥40, including 2 high-risk outliers.
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**5. Recommendations**
- Monitoring:
- Track neighbor IPs with elevated risk scores for lateral movement or compromised hosts.
- Monitor Ahrefs infrastructure for DNS anomalies or unexpected traffic patterns.
- Mitigation:
- Consider segmenting high-risk subnet traffic or implementing egress filtering.
- Validate DNS resolution for `proxy-uk009-san217.ahrefs.net` to confirm legitimacy.
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Conclusion:
The IP is part of a high-abuse subnet operated by OVH, associated with Ahrefs Pte Ltd. While no direct malicious activity is detected, the surrounding network exhibits elevated risk, warranting closer scrutiny. SOC teams should prioritize monitoring neighboring IPs and ensuring DNS integrity for this host.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Ahrefs Pte Ltd Dmytro |
| ASN | AS16276 |
| Network Name | — |
| CIDR Block | — |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-uk009-san217.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk009-san217.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 | 20% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 32% | 2 | 3 |
| Overall | 23% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:26 UTC |
| Last Seen | 2026-06-27 06:40:02 UTC |
| Profile Built | 2026-06-28 00:46:50 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 28 |
Full dossier details are available via our API.