# IPDEBRIEF INTELLIGENCE BRIEFING
Target IP: 54.39.203.217/32
Classification: Moderate Risk (Score: 40)
Report Generated: 2026-06-18T14:18:42Z
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## EXECUTIVE SUMMARY
The target IP is a cloud computing resource hosted on OVH infrastructure in Canada. The IP resolves to a hostname associated with Ahrefs (proxy-ca008-san217.ahrefs.net), indicating legitimate infrastructure use. However, the subnet demonstrates elevated abuse activity, warranting monitoring.
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## OWNERSHIP & INFRASTRUCTURE
- ASN: 16276 (OVH)
- Organization: Dmytro, Ahrefs Pte Ltd
- CIDR Block: 54.39.203.0/24
- Infrastructure Type: CloudCompute
- Geolocation: Beauharnois, QC, Canada (CA)
The IP is firewalled with no open services detected. DNS PTR records confirm association with ahrefs.net domain.
---
## THREAT INDICATORS
- Blacklist Status: Not flagged as known attacker or spam source
- Threat Feeds: No active indicators in major feeds
- Tor Exit Node: No
- Campaign Association: None identified
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## RISK FACTORS
- Subnet Abuse Density: 0.6523 (High Abuse Classification)
- Inherited Risk Score: 26
- DNSBL Listings: 1 of 8 lists (Minimal operator score: 0.2174)
- Route Stability: Flags indicate routing instability
- Geolocation Validation: RTT anomaly detected (29ms observed vs 112.6ms minimum for 5,629km distance)
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## NEIGHBORHOOD ANALYSIS
- Subnet: 54.39.203.0/24
- Total Siblings: 256
- Active Siblings: 217
- Threat Siblings: 167
- Risk Distribution: 0 High, 98 Medium, 2 Low
The subnet exhibits elevated abuse density with 167 threat-siblings out of 256 total IPs, indicating a high-risk hosting environment.
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## OBSERVATION HISTORY
Recent signal observations (2026-06-18) confirm:
- High abuse classification consistent with subnet pattern
- Operator score remains minimal (0.2174)
- Geolocation validation failures persist
No threat persistence detected over observation window.
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## RECOMMENDED ACTIONS
Based on risk profile and neighborhood context:
1. Monitor: Implement monitoring on inbound traffic from this subnet given high abuse density
2. Firewall Rules: Consider rate-limiting traffic from 54.39.203.0/24
3. False Positive Consideration: Ahrefs is a legitimate SEO analytics provider; whitelist may be warranted if traffic matches expected patterns
4. Geolocation Validation: Flag the RTT discrepancy for potential spoofing indicators
---
Analyst Notes: While individual IP shows minimal direct threat indicators, the subnet's high abuse density and threat sibling count warrant defensive monitoring. The Ahrefs association suggests legitimate use, but the hosting environment context requires vigilance.
Data Source: IPDebrief Intelligence Platform
Coverage: Full profile, history, relationships, and neighborhood analysis complete
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059687 |
| CIDR Block | 54.39.203.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca008-san217.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca008-san217.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 | 30% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 35% | 2 | 3 |
| Overall | 23% | 10 | 14 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-07 23:04:28 UTC |
| Last Seen | 2026-06-27 08:23:01 UTC |
| Profile Built | 2026-06-28 02:29:26 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 26 |
Full dossier details are available via our API.