51.195.244.121📋 Copy

# IP INTELLIGENCE BRIEFING: 51.195.244.121

Classification: Moderate Risk | Date: Current | Status: Active

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## Executive Summary

IP address 51.195.244.121 is a cloud-based infrastructure endpoint operating within OVH's London (GB) network, resolving to the legitimate ahrefs.net domain. The IP carries a moderate risk score (40) and shows no active malicious indicators, though it resides within a subnet exhibiting high abuse density (0.8314). No current threat indicators or active campaigns detected.

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## Infrastructure Profile

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## Risk Assessment

• Reputation: Moderate Risk
• Abuse Confidence: Not flagged as known attacker, spam source, or Tor exit node
• Threat Indicators: None detected
• Campaign Associations: No certificate matches or correlated IPs
• Threat Persistence: Single observation event, not persistently malicious

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## Neighborhood Analysis

Subnet 51.195.244.0/24 exhibits elevated activity patterns:

• Abuse Density: 0.8314 (High Abuse Classification)
• Active Siblings: 220 of 255 total IPs
• Threat Siblings: 212 identified
• Risk Distribution: 100 medium-risk neighbors, 0 high-risk neighbors

The subnet shows concentrated hosting activity consistent with OVH infrastructure, but the high threat sibling count warrants contextual awareness during incident correlation.

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## Relationship Graph

• Network Relationships: 31 entries mapping to OVH_282347336 network
• DNS Associations: Consistent resolution to proxy-uk000-san121.ahrefs.net (ahrefs.net domain)
• BGP Prefix: 51.195.0.0/16 (OVH origin)
• Route Stability: Not stable (route changes detected in 30-day window)

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## Historical Observations

20 signal observations recorded over recent period:

• DNS resolution consistently mapped to ahrefs.net with confidence 0.80 (latest)
• Neighborhood abuse density fluctuated between 0.83–0.84 (classified as high_abuse)
• Operator score maintained at 0.2174 (Minimal)
• Geolocation consistently inferred as GB with 750km accuracy radius
• No new threat indicators emerged in observation history

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## Recommended Actions

Immediate:

• Monitor for behavioral changes consistent with abuse patterns in high-density subnet
• Review inbound/outbound traffic patterns for anomalous activity

Firewall/Blocking:

• No specific firewall rules recommended at this time; IP does not meet threshold for immediate blocking
• Consider subnet-level monitoring given high abuse density context

Investigation Triggers:

• Trigger correlation with other IPs in 51.195.0.0/16 prefix upon detection
• Flag for review if traffic exhibits patterns inconsistent with hosting infrastructure

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Analyst Notes: This IP represents legitimate Ahrefs hosting infrastructure operating from OVH. The moderate risk score is primarily driven by subnet-level abuse density rather than IP-specific malicious activity. Monitor contextually with other subnet peers during threat correlation.

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