51.195.215.38📋 Copy

# IP INTELLIGENCE BRIEFING: 51.195.215.38

Classification: Moderate Risk (Score: 50) | Date: Current Assessment

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## EXECUTIVE SUMMARY

IP 51.195.215.38 is a moderate-risk IP address operated by Ahrefs Pte Ltd Dmytro (OVH, ASN 16276) located in London, England. The address resolves to aresidential proxy hostname (proxy-uk009-san38.ahrefs.net) within cloud hosting infrastructure. While the IP itself shows no direct threat indicators, it operates within a high-abuse density subnet (51.195.215.0/24) with 205 threat siblings out of 239 active IPs.

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## OWNERSHIP & GEOLOCATION

• Organization: Ahrefs Pte Ltd Dmytro
• ASN: 16276 (OVH)
• Location: London, England, GB
• CIDR Block: 51.195.0.0/16
• Infrastructure Type: Cloud Hosting
• Contact: Abuse information available via RDAP

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## THREAT ASSESSMENT

Current Status: Moderate Risk (50/100)

Key Findings:

• Threat Indicators: None detected

- No known attacker flags

- No Tor exit node activity

- No spam source designation

- No known campaign correlations

• DNSBL Status: Listed on 2 of 8 DNS blacklists
• Service Status: Firewall protected/no services detected
• Campaign Likelihood: None

Risk Context: While the IP lacks direct malicious indicators, the subnet (51.195.215.0/24) exhibits high abuse density (0.8008) with 205 threat-sibling IPs. This contextual risk warrants monitoring.

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## OBSERVATION HISTORY

Total Observations: 21 signals

Timeline:

• 2026-06-28: Cloud infrastructure classification, OVH provider
• 2026-06-20: DNS resolution to ahrefs.net, CAA records present, minimal operator score (0.2174)

Trend: Stable infrastructure characteristics with no significant escalation in threat signals. Ownership persistence: 0 changes. Threat observation count: 1.

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## NETWORK RELATIONSHIPS

• Related Networks: 42 relationships identified
• Primary Association: OVH network OVH_282347345 (repeated associations)
• No: Hostname, organization, or certificate relationships detected

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## SUBNET ANALYSIS (51.195.215.0/24)

• Abuse Density: 0.8008 (High)
• Classification: High Abuse
• Active Siblings: 239 of 256 IPs
• Threat Siblings: 205
• Risk Distribution: 0 High, 44 Medium, 56 Low risk IPs

Implication: The /24 subnet shows significant abuse activity. Monitor for lateral threats.

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## RECOMMENDED SECURITY ACTIONS

Recommended Firewall Rules:

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## ANALYST NOTES

1. Monitor vs. Block: Given moderate risk score and lack of direct threat indicators, consider monitoring rather than immediate blocking. The subnet-level abuse density justifies caution.

2. Contextual Risk: The IP belongs to Ahrefs infrastructure. Legitimate traffic may originate from this range. Evaluate against known business patterns.

3. DNSBL Listing: Two DNSBL listings require investigation. Determine if listings are due to false positives or actual abuse activity.

4. No Services Detected: Open ports are not exposed. This reduces attack surface but may indicate proxy/relay functionality.

5. Recommendation: Apply allowlist verification for known Ahrefs services. For unknown traffic, implement rate limiting before blocking.

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Prepared by: IP Intelligence Division

Data Source: IPDebrief Intelligence Platform

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.