# IPDEBRIEF INTELLIGENCE BRIEFING
Target IP: 54.38.147.86/32
Classification: Moderate Risk (Score: 50)
Date: Current Analysis
Status: Active Monitoring Required
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## EXECUTIVE SUMMARY
The target IP 54.38.147.86 is a cloud-based hosting address associated with Ahrefs infrastructure, geolocated to London, England. The IP exhibits moderate risk characteristics with 2 DNSBL listings among 8 total lists. The subnet shows elevated abuse density, requiring contextual assessment of traffic patterns. No active threat indicators were identified in current scans.
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## OWNERSHIP & INFRASTRUCTURE
Network Provider: OVH (ASN: 16276)
Organization: Ahrefs Pte Ltd Dmytro
CIDR Block: 54.38.0.0/16
Infrastructure Type: Cloud Compute
Service Classification: Firewalled / No Services
DNS Resolution: proxy-uk005-san86.ahrefs.net
Geolocation: London, England, United Kingdom (Europe/London timezone)
The IP operates within Ahrefs' cloud infrastructure, a legitimate SEO analytics service provider. The address is part of a hosted environment with no publicly exposed services detected on open ports.
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## THREAT INDICATORS
Current Threat Status: No Active Indicators
- Blacklist Count: 2 (of 8 DNSBL lists)
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
- Known Campaigns: None detected
Risk Assessment:
- Risk Score: 50/100 (Moderate)
- Authority Score: 0
- Stability Score: 0
- Abuse Confidence Score: Not Available
Control Plane:
- Route Stability: False
- Operator Score: 0.2174 (Minimal)
- DNSSEC Valid: True
- RPKI State: Not Determined
---
## OBSERVATION HISTORY
Total Observations: 23 signals recorded
Analysis Period: 2026-06-20 to 2026-06-28
Threat Persistence Days: 0
Persistently Malicious: False
Recent Signal Trends:
- 2026-06-28 14:33:33: Cloud infrastructure classification (OVH) confirmed with 90% confidence
- 2026-06-28 14:33:21: Minimal operator score (0.087) with 1 signal out of 8 max
- 2026-06-20 12:34:22: Subnet abuse density classification recorded at 0.6875 (High Abuse)
The IP has demonstrated consistent infrastructure classification with no escalation in threat profile over the observation window.
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## SUBNET ANALYSIS
Subnet: 54.38.147.0/24
Abuse Density: 0.6875 (High Abuse Classification)
Total Siblings: 256
Active Siblings: 210
Threat Siblings: 176
Inherited Risk: 27
Neighbor Risk Distribution:
- High Risk: 0 IPs
- Medium Risk: 28 IPs
- Low Risk: 72 IPs
The subnet exhibits elevated abuse density consistent with OVH's hosting infrastructure model. This is characteristic of multi-tenant cloud environments where legitimate and potentially compromised addresses coexist.
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## RELATIONSHIP NETWORK
Total Relationships: 49
Primary Relationship Type: Same Network (OVH_282347341)
The IP maintains relationships exclusively within the OVH network infrastructure. No external organizational or hostname correlations beyond Ahrefs.net domain resolution were identified.
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## RECOMMENDED ACTIONS
Firewall Rules:
- Monitor inbound/outbound traffic patterns from this IP
- Apply rate limiting if traffic exceeds baseline thresholds
- No immediate block recommendation due to legitimate hosting use
SOC Investigation Guidance:
1. Verify traffic legitimacy against known Ahrefs API patterns
2. Monitor for unusual outbound connection attempts
3. Flag for review if traffic exhibits data exfiltration characteristics
4. Cross-reference with known Ahrefs infrastructure documentation
Priority: LOW - Moderate Risk Profile with Legitimate Hosting Context
Recommendation: Monitor and maintain awareness; no immediate action required absent anomalous behavior patterns.
---
Report Generated: IPDebrief Intelligence Platform
Data Sources: Real-time IP reputation feeds, DNS resolution, network topology analysis, historical signal aggregation
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Ahrefs Pte Ltd Dmytro |
| ASN | AS16276 |
| Network Name | โ |
| CIDR Block | โ |
| RIR | ARIN |
| Country | โ |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR | proxy-uk005-san86.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk005-san86.ahrefs.net |
๐ DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
๐ 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 | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 36% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 31% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 26% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-21 14:58:04 UTC |
| Last Seen | 2026-06-28 14:33:33 UTC |
| Profile Built | 2026-06-29 08:37:36 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 27 |
Full dossier details are available via our API.