54.39.136.134
IP Intelligence Briefing: 54.39.136.134
Date: 2026-06-08
---
**1. Profile Summary**
- Risk Score: 40 (Moderate Risk)
- Provider: OVH (ASN 16276)
- Organization: Dmytro, Ahrefs Pte Ltd
- Geolocation: Canada (QC, Beauharnois)
- Network Role: CloudCompute Hosting (OVH customer)
- Threat Indicators: No malicious activity detected (no known attackers, spam, or blacklists).
---
**2. Observation History**
- Latest Activity: 2026-06-08
- Network Classification: OVH-managed, non-residential, non-Tor.
- Services: No open ports, no TLS certificate, no HTTP title.
- Geolocation: Plausible Canadian origin (latitude 56.13, longitude -106.35).
---
**3. Relationships**
- Linked Entities:
- Subnet: 54.39.136.0/24 (OVH-CUST-281059681)
- Hosted Domains: None (PTR hostname: `proxy-ca002-san134.ahrefs.net`).
- Threat Correlation: No direct campaign matches or malicious banners.
---
**4. Neighborhood Analysis**
- Subnet: 54.39.136.0/24
- Abuse Density: 53.17% (High Abuse Classification)
- Neighbor Risk Distribution:
- Medium Risk: 89 IPs
- Low Risk: 11 IPs
- Total Neighbors: 100
- Inherited Risk: 21 (substantial exposure due to high-risk neighbors).
---
**5. Recommendations**
- Monitor Subnet: High abuse density in 54.39.136.0/24 warrants closer scrutiny of traffic patterns.
- Restrict Access: Consider firewall rules to limit access to this subnet, given its association with high-risk neighbors.
- Verify Hosting: Confirm Ahrefs' compliance with OVH's security policies, as the IP is linked to a hosting provider.
---
Conclusion: While 54.39.136.134 itself shows no direct malicious indicators, its subnet exhibits high abuse density. SOC teams should prioritize monitoring this subnet for lateral movement or unusual traffic patterns.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059681 |
| CIDR Block | 54.39.136.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca002-san134.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca002-san134.ahrefs.net |
🔐 DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 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 | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 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 | 25% | 2 | 2 |
| Overall | 22% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-18 15:27:14 UTC |
| Last Seen | 2026-06-28 07:41:47 UTC |
| Profile Built | 2026-06-29 01:49:32 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 25 |
Full dossier details are available via our API.