54.39.89.18
IP Intelligence Briefing: 54.39.89.18/32
*Generated via IPDebrief tools (June 14, 2026)*
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**1. Core Profile**
- Risk Score: 50 (Moderate Risk)
- Ownership:
- ASN: 16276 (OVH)
- Organization: Ahrefs Pte Ltd
- Subnet: 54.39.89.0/24
- Geolocation:
- Country: Canada (QC, Beauharnois)
- Plausibility: Geo validation failed (RTT mismatch for distance).
- Threat Indicators:
- No malicious indicators, spam, or known attacker activity.
- Network Role: Hosting provider (OVH), no public services detected.
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**2. Observation History**
- Recent Activity (June 14, 2026):
- Minimal risk label (0.2174 operator score).
- Subnet abuse density: 0.5161 (high_abuse classification).
- 22 observations over 30 days, with 11 unique signals.
- Trends:
- Stable risk profile; no upward trend in threats or scans.
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**3. Relationships & Network Context**
- Linked Entities:
- Subnet: 54.39.89.0/24 (OVH-CUST-281059691).
- DNS: Resolves to `proxy-ca012-san18.ahrefs.net` (no email auth records).
- Neighbors:
- Subnet Abuse Density: 51.61% (high_abuse classification).
- Neighbor Risk Distribution: 86 medium-risk IPs, 14 low-risk IPs.
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**4. Threat & Security Implications**
- Subnet Risks:
- High abuse density in the 54.39.89.0/24 subnet.
- 128 of 248 sibling IPs flagged as threats.
- Actionable Steps:
- Monitor subnet for lateral movement orε ³θ attacks.
- Verify geolocation spoofing (RTT discrepancy suggests possible misrepresentation).
- Consider blocking high-risk neighbors (e.g., IPs with >50 risk score).
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**5. Recommendations**
- Firewall Rules:
- Block high-risk neighbors via IP reputation (e.g., `54.39.89.0/24` with abuse density >50%).
- Monitoring:
- Track subnet activity for unusual traffic patterns.
- Validate Ahrefs' infrastructure legitimacy (OVH hosting).
- Investigation:
- Cross-check with threat feeds for any missed indicators.
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*End of Briefing*
*Generated by IPDebrief (© 2026)*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059691 |
| CIDR Block | 54.39.89.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | β |
π DNS Intelligence
| PTR | proxy-ca012-san18.ahrefs.net |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca012-san18.ahrefs.net |
π DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting β Infrastructure provider without advanced routing |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 33% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 34% | 2 | 3 |
| Overall | 23% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) β 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-07 23:04:29 UTC |
| Last Seen | 2026-06-27 08:53:16 UTC |
| Profile Built | 2026-06-28 08:59:37 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 30 |
Full dossier details are available via our API.