51.195.183.20
IP Intelligence Briefing: 51.195.183.20/32
*Generated via IPDebrief Analysis*
---
**Core Profile**
- Risk Score: Moderate (40/100)
- Ownership:
- ASN: AS16276 (OVH)
- Organization: Ahrefs Pte Ltd Dmytro
- Geolocation: London, England, UK (geo-plausibility: false)
- Network Role: Cloud compute instance (OVH), no public services detected.
- Threat Indicators:
- Observed by AlienVault OTX (4 pulse detections, potential malicious activity).
- No direct malware campaigns or spam associations.
---
**Observation History**
- Latest Threat Signal: June 9, 2026 (AlienVault OTX) – flagged as high-risk with 4 pulses.
- Historical Activity:
- Scanned June 1, 2026 (no open ports detected).
- DNS resolution linked to `proxy-uk003-san20.ahrefs.net` (Ahrefs infrastructure).
- Stability: No persistent malicious activity; risk score stable over 30 days.
---
**Relationships**
- Network Associations:
- Subnet: `51.195.183.20/24` (OVH ASN 16276).
- Linked to Ahrefs’ DNS hostname `proxy-uk003-san20.ahrefs.net`.
- Subnet Context:
- Abuse Density: 53.91% (high risk).
- Neighbor Risk: 138/256 IPs in subnet flagged as risky (avg. 40 risk score).
- Inherited Risk: 21% from subnet-level abuse.
---
**Actionable Insights**
1. Monitor Subnet: The `51.195.183.20/24` subnet has a high abuse density, suggesting potential lateral movement or compromised hosts.
2. Verify Ahrefs Activity: The IP is linked to Ahrefs’ infrastructure, but its association with AlienVault OTX raises questions about potential misuse. Confirm if this aligns with known legitimate operations.
3. Firewall Considerations:
- Block or restrict traffic to this IP if it’s not part of your allowed cloud services.
- Review subnet-level rules to mitigate risks from neighboring IPs.
4. Continuous Monitoring: Track changes in the IP’s threat signals and subnet abuse density.
---
Conclusion: While the IP itself is not a known attacker, its subnet’s high abuse density and association with potential threats warrant closer scrutiny. SOC teams should validate the IP’s legitimacy and implement controls to mitigate subnet-level risks.
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-uk003-san20.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk003-san20.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 | 15% | 2 | 2 |
| ownership | 20% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 25% | 2 | 2 |
| Overall | 22% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-20 05:45:03 UTC |
| Last Seen | 2026-06-28 11:17:48 UTC |
| Profile Built | 2026-06-29 05:22:21 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 25 |
Full dossier details are available via our API.