51.222.95.91
IP Intelligence Briefing: 51.222.95.91/32
*Generated via IPDebrief Analysis*
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**1. Core Profile**
- Risk Rating: Moderate Risk (Risk Score: 40)
- Ownership: Registered to Ahrefs Pte Ltd (OVH ASN 16276)
- Geolocation: Singapore (Country: CA, Region/City: Unknown)
- Network Role: Cloud infrastructure (OVH-hosted, no public services)
- Threat Status: No direct malicious indicators (no malware, phishing, or spam associations).
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**2. Historical Observations**
- Recent Activity:
- Observed on June 11–16, 2026, with consistent "Minimal" risk scores (operator score: 0.2174).
- Subnet 51.222.95.0/24 shows high abuse density (64.84%), with 166/256 IPs flagged as threats.
- Stability: Subnet routing has experienced volatility (route changes in 30 days: 0, but instability flagged).
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**3. Network Relationships**
- Key Associations:
- Linked to OVH-CUST-281059689 (same network).
- DNS: Resolves to proxy-ca010-san91.ahrefs.net (Ahrefs infrastructure).
- No Tor, CDN, or mobile carrier associations.
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**4. Subnet Neighborhood**
- Subnet: 51.222.95.0/24
- Abuse Density: High (64.84% of IPs flagged as threats).
- Neighbor Analysis:
- 193/256 IPs active, with 166 flagged as malicious.
- Inherited risk: 25% (subnet-level threat exposure).
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**5. Recommendations**
- Monitor Subnet: High abuse density in 51.222.95.0/24 suggests potential for lateral movement or compromised hosts.
- Verify DNS: Confirm DNS resolution to proxy-ca010-san91.ahrefs.net aligns with Ahrefs’ legitimate infrastructure.
- Block Subnet: Consider blocking the entire subnet (51.222.95.0/24) to mitigate exposure to associated threats.
- Check Cloud Security: Ensure OVH-hosted infrastructure has robust security controls (e.g., WAF, IDS/IPS).
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*Note: No direct malicious activity observed, but subnet-level risks warrant further investigation.*
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-281059689 |
| CIDR Block | 51.222.95.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca010-san91.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca010-san91.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 | 8% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 23% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-25 18:48:23 UTC |
| Last Seen | 2026-06-29 02:11:02 UTC |
| Profile Built | 2026-06-29 08:13:08 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 25 |
Full dossier details are available via our API.