51.195.244.247
IP Intelligence Briefing: 51.195.244.247
Date: 2026-06-08
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**1. Core Profile**
- Risk Score: Moderate (40/100)
- Provider: OVH (ASN 16276)
- Ownership: Ahrefs Pte Ltd (Singapore)
- Geolocation:
- Reported: London, England, UK
- Actual Registration: Singapore (via ARIN)
- Network Role: Hosting Infrastructure (OVH)
- Threat Indicators: No active malicious activity, no known campaigns, no DNSBL listings.
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**2. Observation History**
- Recent Signals (2026-06-08):
- DNS: Resolves to `proxy-uk000-san247.ahrefs.net` (Ahrefs subdomain).
- Network: Stable routing (BGP prefix: `51.195.0.0/16`).
- Reputation: Minimal risk (operator score: 0.2174).
- Trend: No significant changes in risk or abuse patterns over the past 30 days.
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**3. Relationships**
- DNS Associations:
- Linked to `proxy-uk000-san247.ahrefs.net` (Ahrefs subdomain).
- Network:
- Part of OVH’s network (ASN 16276).
- Geolocation:
- Confirmed as plausible (RTT: ~95ms, accuracy radius: 750km).
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**4. Neighborhood Analysis**
- Subnet: `51.195.244.247/24`
- Abuse Density:
- Subnet abuse density: 52.17% (high abuse classification).
- Neighbors: 253 IPs in subnet; 132 are flagged as malicious.
- Risk Distribution: 98% medium-risk neighbors, 2% low-risk.
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**5. Key Findings**
- Legitimate Hosting: IP is associated with Ahrefs, a legitimate SEO tool provider, hosted on OVH infrastructure.
- Geolocation Discrepancy: IP reports London, UK, but is registered to Singapore. Potential misconfiguration or spoofing.
- Subnet Risk: Subnet has high abuse density, but the IP itself shows no direct malicious activity.
- No Active Threats: No indicators of spam, C2, or exploitation observed.
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**6. Recommendations**
- Monitor Subnet: Due to high abuse density in the subnet, continue monitoring for lateral movement or compromised neighbors.
- Verify Geolocation: Investigate the London geolocation discrepancy to rule out spoofing or misconfigured DNS.
- Maintain Baseline: No immediate action required for the IP itself, but ensure it aligns with Ahrefs’ expected infrastructure.
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Source: IPDebrief Threat Intelligence Platform.
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-uk000-san247.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk000-san247.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 | 33% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 21% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 26% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-18 03:23:25 UTC |
| Last Seen | 2026-06-28 06:40:18 UTC |
| Profile Built | 2026-06-29 00:45:29 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 25 |
Full dossier details are available via our API.