51.222.168.1📋 Copy

# IP INTELLIGENCE BRIEFING

IP Address: 51.222.168.1/32

Date: 2026-06-14

Classification: Moderate Risk

Risk Score: 40/100

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## EXECUTIVE SUMMARY

IP 51.222.168.1 is an OVH CloudCompute infrastructure IP with moderate risk (40). The address resolves to ahrefs.net with PTR hostname proxy-ca018-san1.ahrefs.net. While no active threat indicators are present, the IP resides in a high-abuse subnet (51.222.168.0/24) with 67.19% abuse density and 172 of 256 sibling IPs flagged as threats. Geolocation data shows inconsistencies between reported Canadian coordinates and Singapore city assignment.

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## OWNERSHIP & INFRASTRUCTURE

Network Role: Cloud hosting infrastructure with firewall protection. No open services detected.

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## GEOLOCATION ANALYSIS

Note: Geographic data inconsistency suggests potential routing anomalies or misattribution.

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## DNS & SERVICE ANALYSIS

Security Posture: DNSSEC and CAA records present. SPF/DMARC not configured.

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## THREAT INTELLIGENCE

Recent Signal History: 24 observations recorded. No persistent malicious activity detected.

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## NEIGHBORHOOD ANALYSIS (51.222.168.0/24)

Neighbor Risk Distribution: 99 medium risk, 1 low risk, 0 high risk

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## SECURITY ACTIONS & RECOMMENDATIONS

Risk Assessment: Moderate (40/100). No immediate blocking required, but monitoring recommended.

Recommended Firewall Rules:

```bash

# iptables

iptables -A INPUT -s 51.222.168.1 -j DROP

# nftables

nft add rule inet filter input ip saddr 51.222.168.1 drop

# nginx

deny 51.222.168.1;

# pfSense

51.222.168.1/32

# Cloudflare WAF

{"description": "Block 51.222.168.1 — IPDebrief risk score 40", "action": "block", "filter": {"expression": "ip.src eq 51.222.168.1"}}

# AWS WAF

{"Addresses":["51.222.168.1/32"],"Description":"IPDebrief risk 40"}

```

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## THREAT INTELLIGENCE NARRATIVE

IP 51.222.168.1 belongs to OVH cloud infrastructure associated with ahrefs.net. The address demonstrates moderate risk characteristics with no active threat indicators. However, contextual analysis reveals the IP operates within a high-abuse subnet (51.222.168.0/24) where 67% of sibling IPs show abuse patterns.

Key intelligence points:

• Geographic anomaly between Canada and Singapore assignments warrants investigation
• DNSSEC and CAA records indicate basic infrastructure hardening
• No open services detected, suggesting firewall protection
• Single DNSBL listing among 8 total lists indicates some reputation issues
• 172 threat siblings in the /24 subnet suggest elevated risk environment

Operational Recommendation: Monitor inbound connections from this subnet. Consider blocking if legitimate traffic from ahrefs.net cannot be verified. No immediate action required for outbound connections from internal networks.

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