54.39.136.38
IP Intelligence Dossier
Your IP: 216.73.216.123
🤖 Witness AIThis summary was generated by AI and may contain inaccuracies. Verify critical details independently.
IP Intelligence Briefing: 54.39.136.38
Date: 2026-06-09
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**1. Risk Profile**
- Overall Risk: Moderate (Risk Score: 40)
- Provider Score: 0 (OVH)
- Authority Score: 0
- Stability: Unstable (route changes detected)
- Threat Indicators: No direct malicious activity (no spam, attacks, or blacklists).
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**2. Ownership & Network**
- ASN: 16276 (OVH)
- Organization: Ahrefs Pte Ltd (cloud hosting provider)
- Subnet: 54.39.136.0/24
- Abuse Density: 54.33% (high abuse classification)
- Neighbor Risk: 89 IPs in subnet flagged as medium/low risk; 138 siblings show potential threats.
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**3. Geolocation**
- Country: Canada (QC, Beauharnois)
- Coordinates: Latitude 56.13, Longitude -106.35 (approximate)
- Plausibility: Low (geolocation inconsistencies).
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**4. Network Behavior**
- Cloud Compute: Yes (OVH infrastructure, no residential/mobile indicators).
- Services: No open ports; no TLS/HTTP banners detected.
- DNS: Linked to `proxy-ca002-san38.ahrefs.net` (ahrefs.net domain).
- BGP: Route stability issues; 0.54 abuse density in subnet.
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**5. Historical Observations**
- Scan Activity: Detected 6 scans (ports 22, 80, 443, etc.) on 2026-06-09.
- Subnet Trends: Abuse density increased by 15% in the last 30 days.
- No Persistent Threats: No campaigns, honeypot hits, or long-term malicious patterns.
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**6. Relationships**
- Linked Entities:
- Subnet: 54.39.136.0/24 (OVH-CUST-281059681)
- Domain: ahrefs.net (CAA records, no email auth).
- No Known Threat Associations: No correlated IPs or campaigns.
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**7. Recommendations**
- Monitor Subnet: High abuse density in 54.39.136.0/24; investigate neighboring IPs.
- Restrict Access: Apply firewall rules to block non-essential ports (e.g., 22, 80, 443) unless required.
- Verify Ownership: Confirm Ahrefs’ usage of this subnet to ensure no unauthorized activity.
- Check for Anomalies: Track changes in geolocation or BGP routes for potential spoofing.
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End of Briefing
*Generated via IPDebrief threat intelligence platform.*
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-san38.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca002-san38.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
No certificate
Issued by —
N/A
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 31% | 2 | 2 |
| Overall | 23% | 10 | 14 |
Coverage: 6/6 dimensions · Data sufficiency: sufficient
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-21 14:58:05 UTC |
| Last Seen | 2026-06-28 14:38:36 UTC |
| Profile Built | 2026-06-29 08:43:38 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 25 |
🔍 21 signal types · 25 observations collected
This report is generated from 21+ independent intelligence signals including
ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds,
behavioral fingerprinting, and more.
Full dossier details are available via our API.
Full dossier details are available via our API.
ℹ️ About This Report
All data shown is publicly available network metadata — IP addresses do not reliably identify individuals.
Assessments are probabilistic and should not be used as sole basis for access control decisions.
To report an issue or request data review, contact admin@ipdebrief.com.