51.222.95.47
IP Intelligence Briefing: 51.222.95.47
Date: 2026-06-18
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**1. Risk Profile**
- Overall Risk Score: Low (25/100)
- Provider Score: 0 (OVH)
- Authority Score: 0
- Stability Score: 0
- Threat Indicators: None detected (no malware, spam, or known attacker associations).
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**2. Ownership & Network**
- Registered Organization: Ahrefs Pte Ltd (OVH customer)
- ASN: 16276 (OVH)
- Subnet: 51.222.95.0/24
- Network Role: CloudCompute (OVH infrastructure)
- Geolocation:
- Country: Canada (CA)
- Region: QC (Quebec)
- City: Singapore (geo-plausibility flag raised due to RTT discrepancies).
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**3. Threat Observations**
- DNS Resolution:
- Resolves to `proxy-ca010-san47.ahrefs.net` (Ahrefs domain).
- No email authentication (SPF/DKIM) detected.
- Network Anomalies:
- RTT Discrepancy: 27ms observed vs. expected 112ms for 5,598km distance.
- DNSBL Listing: 1/8 DNSBL lists (low priority).
- No Malicious Activity:
- No open ports, TLS certificates, or server banners detected.
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**4. Neighborhood Analysis**
- Subnet Abuse Density: 0.5 (moderate risk).
- Neighbor Risk Distribution:
- High Risk: 0 IPs
- Medium Risk: 86 IPs
- Low Risk: 14 IPs
- Notable Neighbors:
- 51.222.95.0–51.222.95.4 (all flagged as medium risk).
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**5. Recommendations**
- Monitor Subnet: The 51.222.95.0/24 subnet has a moderate abuse density; monitor for lateral movement or compromised hosts.
- Verify Geolocation: Investigate the Singapore city claim, as RTT data suggests a potential spoofing attempt.
- Ensure Secure Configuration: Confirm HTTPS/TLS is enabled for Ahrefs services, as no TLS certificate was detected.
- Check DNS Security: Validate DNSSEC and CAA records for `ahrefs.net` to prevent misconfigurations.
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Conclusion:
51.222.95.47 is a low-risk cloud server operated by Ahrefs, associated with OVH infrastructure. While no direct threats are detected, the subnet contains medium-risk peers, and DNS anomalies warrant further investigation. No immediate mitigation is required, but ongoing monitoring is advised.
Tools Used: `ipdebrief_profile`, `ipdebrief_history`, `ipdebrief_relationships`, `ipdebrief_neighbors`.
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-san47.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca010-san47.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 | 29% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 24% | 2 | 3 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 32% | 2 | 3 |
| Overall | 24% | 10 | 16 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:26 UTC |
| Last Seen | 2026-06-27 07:09:41 UTC |
| Profile Built | 2026-06-28 01:15:18 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 27 |
Full dossier details are available via our API.