54.39.210.53📋 Copy

IP Intelligence Briefing: 54.39.210.53

Date: 2026-06-11

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**1. Core Profile**

• Risk Score: Moderate (50/100)
• Ownership:

- ISP: OVH (AS16276)

- Organization: Dmytro, Ahrefs Pte Ltd

- Network: OVH-CUST-281059686

• Geolocation:

- Country: Canada (CA)

- City: Singapore (geolocation inconsistency noted)

- Accuracy: 3,000 km radius

• Network Role:

- Type: Cloud Compute (OVH hosting)

- Subnet: 54.39.210.0/24

- Abuse Density: 50.59% (high abuse classification)

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**2. Threat Indicators**

• Current Threats: No direct malicious indicators (no abuse confidence scores, no blacklists).
• Historical Observations:

- Listed in 1 threat feed (June 11, 2026) with "high" severity.

- No persistent malicious activity detected.

• Subnet Risk:

- Total Siblings: 253 IPs in 54.39.210.0/24

- Threat Siblings: 128 IPs flagged as risky (50.59% abuse density).

- Active Siblings: 140 IPs (60% of subnet).

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**3. Relationships & DNS**

• DNS Associations:

- Linked to proxy-ca007-san53.ahrefs.net (Ahrefs Pte Ltd).

- No email authentication (SPF/DKIM/DMARC) detected.

• Network Relationships:

- Same network as OVH-CUST-281059686 (high abuse subnet).

- No direct connections to known C2 servers, Tor, or CDNs.

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**4. Behavioral & Technical Context**

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

- BGP prefix: 54.39.0.0/16

- Route stability: Unstable (route changes in last 30 days).

• DNSSEC: Validated (DNSSEC enabled).
• Honeypot/Proxies: Not identified as a honeypot or proxy.

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**5. Recommendations**

• Monitoring:

- Track subnet (54.39.210.0/24) for abnormal traffic patterns due to high abuse density.

- Monitor DNS queries to proxy-ca007-san53.ahrefs.net for potential exfiltration or command-and-control activity.

• Firewall Rules:

- Consider blocking traffic from this subnet if it aligns with known malicious behavior.

- Use IPDebrief's firewall rule generator for custom iptables/nftables rules.

• Investigation:

- Verify Ahrefs' infrastructure legitimacy (proxy IP may be part of legitimate cloud services).

- Cross-reference with threat feeds for updated risk assessments.

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Conclusion:

This IP is part of a high-abuse subnet managed by OVH, associated with Ahrefs Pte Ltd. While no direct malicious activity is observed, the subnet's risk profile warrants closer scrutiny. SOC teams should prioritize monitoring traffic patterns and validate DNS relationships to mitigate potential risks.

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