51.195.215.181📋 Copy

IP Intelligence Briefing: 51.195.215.181

Date: 2026-06-09

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**1. Core Profile**

• Risk Score: Moderate (50/100)
• Ownership: Ahrefs Pte Ltd (OVH provider, ASN 16276)
• Geolocation: London, England, UK (high confidence, ~750km accuracy)
• Network Role: CloudCompute (OVH) with hosting services; no CDN/VPN/Tor/residential indicators.
• Threat Indicators: No direct malicious activity detected (no blacklists, spam, or campaigns).

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**2. Subnet Analysis**

• Subnet: 51.195.215.181/24
• Abuse Density: 62.5% (high abuse classification)
• Neighbor Risk: 94 IPs scored low/medium risk, 6 high risk.
• Key Findings:

- Subnet exhibits elevated abuse activity, with 160 of 256 sibling IPs flagged as threats.

- IP is part of a high-risk OVH network (OVH_282347345).

- Sibling IPs show mixed risk profiles, suggesting potential lateral movement or shared infrastructure risks.

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**3. Relationships & DNS**

• DNS Associations:

- Linked to `proxy-uk009-san181.ahrefs.net` (Ahrefs’ proxy hostname).

- No email authentication records (SPF/DKIM/DMArc).

• Network Relationships:

- Connected to OVH infrastructure (ASN 16276).

- No direct ties to known malicious organizations or campaigns.

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**4. Behavioral & Technical Data**

• Services: No open ports or TLS certificates detected.
• Routing:

- BGP path: `57866 16276` (OVH).

- Route stability: Stable (no recent changes).

• Geolocation Validation:

- RTT (Round-Trip Time) consistent with London, UK (~93ms).

- No geo-plausibility violations.

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**5. Recommendations**

1. Monitor Subnet Activity:

- The 51.195.215.181/24 subnet has high abuse density. Investigate traffic patterns and correlate with other IPs in the subnet.

2. Review Ahrefs Infrastructure:

- Ahrefs is a legitimate SEO tool, but ensure this IP isn’t part of a compromised or misconfigured system.

3. Firewall Actions (Proactive):

- Consider blocking the subnet if traffic is not required:

```bash

iptables -A INPUT -s 51.195.215.0/24 -j DROP

```

- Update WAF rules (Cloudflare/AWS) to block the subnet.

4. Check for Lateral Movement:

- The subnet’s high abuse score suggests potential for related threats. Validate if this IP is part of a larger attack surface.

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Conclusion:

The IP is associated with a legitimate cloud provider (OVH) and a known SEO company (Ahrefs). While no direct malicious activity is detected, the subnet’s high abuse density warrants closer scrutiny. SOC teams should prioritize monitoring traffic from this subnet and validate the IP’s role in Ahrefs’ infrastructure.

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