15.235.27.151
IP Intelligence Briefing: 15.235.27.151/32
*Generated via IPDebrief Threat Intelligence Platform*
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**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership: Registered to Ahrefs Pte Ltd (OVH ASN 16276)
- Geolocation:
- Country: Canada (CA)
- City: Singapore
- Geo Validity: Invalid (RTT anomaly detected; 26ms vs. expected 121.6ms for 6082km)
- Network Role:
- Provider: OVH
- Infrastructure: CloudCompute (Hosting)
- Subnet: 15.235.27.0/24 (OVH-CUST-281059692)
- Threat Indicators:
- No malicious activity detected (no abuse confidence, blacklist, or campaign ties).
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**2. Observation History**
- Recent Activity:
- Subnet abuse density: 0.5312 (High Abuse Classification).
- 136 of 256 siblings in the /24 subnet show threat activity.
- Geo validation flagged as invalid due to RTT inconsistency.
- DNS Associations:
- Linked to proxy-ca013-san151.ahrefs.net (likely a CDN or proxy node).
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**3. Network Relationships**
- Primary Connections:
- Same network: OVH-CUST-281059692 (repeated 27x).
- DNS: ahrefs.net (CAA records present, no SPF/DMArc).
- Service Context:
- No open ports, TLS certs, or HTTP services detected.
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**4. Neighborhood Analysis**
- Subnet: 15.235.27.0/24
- Risk Distribution:
- High Risk: 0 IPs
- Medium Risk: 97 IPs
- Low Risk: 3 IPs
- Abuse Density: 53.12% (high abuse classification).
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**5. Recommendations**
- Monitor Subnet: The /24 subnet shows elevated abuse density.
- Validate Geolocation: Investigate the geo anomaly (discrepancy between claimed and actual RTT).
- Network Segmentation: Consider isolating high-risk subnets to limit lateral movement.
- DNS Monitoring: Track DNS changes for ahrefs.net and related hosts.
Note: No immediate mitigation required, but continuous monitoring is advised due to the subnet's risk profile.
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*Generated by IPDebrief 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-281059692 |
| CIDR Block | 15.235.27.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca013-san151.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca013-san151.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 | |||
| 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 | 30% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 21% | 9 | 13 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-22 03:08:33 UTC |
| Last Seen | 2026-06-28 17:05:46 UTC |
| Profile Built | 2026-06-29 05:12:01 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 24 |
Full dossier details are available via our API.