5.39.1.231
IP Intelligence Briefing: 5.39.1.231
Risk Profile: Moderate Risk (40/100) | Subnet: 5.39.1.0/24 (High Abuse Density)
Key Findings:
1. Ownership:
- Owned by Ahrefs Pte Ltd Dmytro (OVH ASN 16276).
- Registered in France (FR) with no residential/mobile indicators.
2. Network Role:
- Cloud-hosted server (OVH infrastructure).
- No open ports, TLS, or HTTP services detected.
- Subnet 5.39.1.0/24 shows 0.6875 abuse density, with 31 sibling IPs (22 flagged as threats).
3. Threat Indicators:
- No direct malicious activity, spam, or known attacker associations.
- Subnet includes IPs with elevated risk scores (e.g., 5.39.1.224 [50], 5.39.1.248 [65]).
4. Observation History:
- Stable ownership since at least June 10, 2026.
- No significant changes in geolocation or threat signals.
5. Neighbor Analysis:
- 22/31 neighbors in the subnet have medium/high risk.
- Siblings include IPs with similar OVH ownership but varying risk levels.
Recommended Actions:
- Monitor the 5.39.1.0/24 subnet for unusual traffic patterns.
- Investigate high-risk neighbors (e.g., 5.39.1.224, 5.39.1.248) for potential lateral movement or compromised hosts.
- Confirm if the cloud server is authorized and ensure no unauthorized access to the subnet.
Conclusion: While the IP itself is not malicious, its subnet exhibits elevated risk. SOC teams should prioritize subnet-level monitoring and validate the legitimacy of cloud-hosted assets.
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 | RIPE |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-fr005-san231.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-fr005-san231.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 | |||
| 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 | 26% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 24% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 20% | 9 | 13 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:24 UTC |
| Last Seen | 2026-06-27 05:54:35 UTC |
| Profile Built | 2026-06-28 00:01:20 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 24 |
Full dossier details are available via our API.