51.195.215.61📋 Copy

# IP Intelligence Briefing: 51.195.215.61/32

Classification: Moderate Risk | Risk Score: 40 | Provider: OVH (ASN: 16276)

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## Executive Summary

IP 51.195.215.61 is a cloud compute host located in London, England, operated by Ahrefs Pte Ltd Dmytro under OVH infrastructure. The IP is associated with ahigh-abuse subnet (51.195.215.0/24) exhibiting a 78.12% abuse density and 200 threat-adjacent siblings. While the target IP lacks direct threat indicators, the elevated neighborhood risk warrants defensive monitoring.

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## Network Profile

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## Threat Assessment

• Risk Score: 40/100 (Moderate)
• Blacklist Status: 0 listings
• Threat Indicators: None detected
• Known Attacker: No
• Tor Exit Node: No
• Spam Source: No
• DNSBL Listings: 1 of 8 total lists

The IP shows no direct malicious activity. However, the subnet-level context is significant: 200 of 256 active sibling IPs are classified as threats, indicating potential lateral risk in the broader /24 range.

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## Observation History

Recent signal observations (as of 2026-06-15) indicate:

• Ownership stability with no changes
• No persistent malicious activity detected
• Subnet abuse density consistently rated at high level
• No historical threat persistence patterns

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## Related Entities

The IP is associated with:

• Network: OVH_282347345 (multiple references)
• Organization: Ahrefs Pte Ltd Dmytro
• Domain: ahrefs.net
• Control Plane: BGP prefix 51.195.0.0/16 with route instability flags

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## Recommended Actions

Based on the risk profile, the following firewall rules are recommended:

```bash

# iptables

iptables -A INPUT -s 51.195.215.61 -j DROP

# nftables

nft add rule inet filter input ip saddr 51.195.215.61 drop

# nginx

deny 51.195.215.61;

# pfSense

51.195.215.61/32

# Cloudflare WAF

filter: ip.src eq 51.195.215.61 → Block

# AWS WAF

Addresses: 51.195.215.61/32

```

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## Analyst Notes

• Contextual Warning: While the target IP lacks direct threat indicators, the /24 subnet (51.195.215.0/24) is classified as high-abuse with 78.12% abuse density. Consider monitoring all IPs in this subnet.
• Infrastructure Legitimacy: The IP resolves to ahrefs.net infrastructure, suggesting potential legitimate use. However, the hosting environment shows elevated neighbor risk.
• Action Decision: Recommend blocking for defensive posture, but correlate with additional signals before enforcement. The moderate risk score combined with high neighborhood abuse density suggests a risk-reward tradeoff favoring conservative blocking.

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