51.195.244.156
IP Intelligence Briefing: 51.195.244.156
Date: 2026-06-14
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**1. Core Profile**
- Risk Score: Moderate (50/100)
- Ownership: Ahrefs Pte Ltd (OVH AS16276) | UK-based | Hosting Provider
- Geolocation: London, England (latitude 51.5095, longitude -0.0955)
- Network Role: Cloud Compute (OVH) | Firewalled | No Public Services
- Threat Indicators: No direct malicious activity detected.
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**2. Observation History**
- Recent Activity (2026-06-14):
- Listed in 8 threat feeds (high/medium severity).
- DNSSEC and CAA records validated.
- BGP route stability confirmed (AS16276).
- No active scans or known attacker associations.
- Historical Trends:
- Stable ownership (no recent changes).
- No persistent malicious behavior observed.
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**3. Network Relationships**
- Linked Entities:
- Subnet: 51.195.244.156/24 (OVH network segment).
- Related Hostname: `proxy-uk000-san156.ahrefs.net` (Ahrefs infrastructure).
- Key Connections:
- Part of a high-abuse subnet with 155 malicious neighbors.
- No direct ties to Tor, CDN, or proxy services.
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**4. Subnet Analysis**
- Subnet: 51.195.244.156/24
- Abuse Density: 60.78% (high risk)
- Neighbor Risk:
- 177 active IPs in subnet.
- 155 are flagged as threats (malicious activity, spam, or abuse).
- Inherited Risk: 24/100 (moderate) due to surrounding IPs.
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**5. Recommendations**
- Monitor Subnet: The IP resides in a high-abuse subnet. Investigate traffic patterns and isolate if anomalies arise.
- Verify DNS: Ensure DNSSEC and CAA records are properly configured to prevent spoofing.
- Network Segmentation: Consider isolating this subnet to limit lateral movement if compromised.
- Threat Feed Alerts: Watch for updates from the 8 feeds where this IP was listed.
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Conclusion: While the IP itself shows no direct malicious activity, its location in a high-abuse subnet raises operational risk. SOC teams should prioritize monitoring and defensive measures to mitigate potential exposure.
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 | Ahrefs Pte Ltd Dmytro |
| ASN | AS16276 |
| Network Name | — |
| CIDR Block | 51.195.0.0/16 |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-uk000-san156.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk000-san156.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 | Tier 3 — Basic operator with some routing infrastructure |
🔌 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 | 26% | 2 | 4 |
| routing | 27% | 2 | 3 |
| services | 20% | 2 | 3 |
| ownership | 24% | 3 | 4 |
| reputation | 28% | 1 | 3 |
| geolocation | 25% | 2 | 2 |
| Overall | 25% | 12 | 19 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-14 01:10:15 UTC |
| Last Seen | 2026-06-28 00:11:53 UTC |
| Profile Built | 2026-06-28 18:17:28 UTC |
| Data Freshness | Live |
| Signal Types | 26 |
| Total Observations | 30 |
Full dossier details are available via our API.