51.89.129.78📋 Copy

IP Intelligence Briefing: 51.89.129.78/32

Date: 2026-06-14

---

**1. Core Profile**

• Risk Score: 25 (Low Risk)
• Ownership:

- ASN: 16276 (OVH)

- Organization: Ahrefs Pte Ltd (Hosting Provider)

- Location: London, England, GB (Geolocation Consensus: Plausible)

• Network Role: Hosting infrastructure (OVH network, no public services detected).
• Threat Indicators: No malicious activity, no blacklists, no known campaigns.

---

**2. Subnet Analysis**

• Subnet: 51.89.129.78/24
• Abuse Density: 44.92% (Mixed classification: 75% medium/low risk neighbors, 25% high risk).
• Neighbor Risk:

- 100 total IPs in subnet.

- 75 IPs flagged as medium/low risk; 25 high-risk neighbors detected.

• Inherited Risk: 17 (moderate risk from subnet activity).

---

**3. Historical Observations**

• Recent Activity:

- First observed on 2026-05-31 (no prior records).

- Subnet abuse density increased to 44.92% in the last 30 days.

- No persistent malicious behavior or ownership changes.

---

**4. Relationships & Network Context**

• Linked Entities:

- OVH network (ASN 16276) with 67+ sibling IPs.

- No direct ties to known malicious organizations or domains.

• DNS:

- PTR hostname: `proxy-uk008-san78.ahrefs.net` (Ahrefs infrastructure).

- No email authentication records (SPF/DKIM).

---

**5. Threat & Mitigation**

• No Immediate Threat: IP itself is clean, but subnet has elevated risk.
• Recommendations:

- Monitor subnet for new high-risk neighbors.

- Validate Ahrefs’ network activity to ensure no covert operations.

- Consider blocking high-risk subnet IPs (e.g., 51.89.129.x) if traffic anomalies occur.

---

Conclusion: 51.89.129.78 is a low-risk hosting IP associated with Ahrefs, but its subnet exhibits moderate abuse. No direct threats detected, but network-level monitoring is advised.

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