15.235.27.4
IP Intelligence Briefing: 15.235.27.4
Date: 2026-06-14
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Provider: OVH (AS16276)
- Organization: Ahrefs Pte Ltd (OVH-CUST-281059692)
- Geolocation: Singapore (CA), but geo-plausibility is false (RTT discrepancy).
- Network Role: Cloud compute infrastructure (OVH Hosting).
- Threat Indicators: No malicious activity detected (no blacklists, campaigns, or threats).
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**2. Observation History**
- Latest Activity: June 2026 (1 observation).
- Signals:
- Linked to `ahrefs.net` (DNS resolution).
- Subnet abuse density: 49% (mixed classification).
- No persistent malicious behavior.
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**3. Network Relationships**
- Connected Entities:
- Same subnet (`15.235.27.4/24`) with 159 active IPs.
- 125 threat siblings (medium/high risk) in the subnet.
- No direct ties to known malicious organizations or domains.
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**4. Subnet Analysis**
- Subnet: `15.235.27.4/24`
- Risk Distribution:
- 10% low risk, 90% medium/high risk (neighbors).
- Abuse Density: 49% (mixed benign/malicious activity).
- Notable Neighbors:
- IPs with risk scores up to 50 (e.g., `15.235.27.0`, `15.235.27.1`).
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**5. Threat Assessment**
- No direct threats detected (no malware, phishing, or C2 activity).
- Geo-Plausibility Issue: RTT of 28ms vs. expected 121.6ms for 6,082km distance.
- Neighbor Risk: Subnet contains 125 IPs with elevated risk scores.
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**6. Recommendations**
1. Monitor Subnet: Track activity in `15.235.27.4/24` for unusual traffic patterns.
2. Verify Geolocation: Investigate geo-plausibility discrepancy (potential spoofing or CDN node).
3. Check Cloud Provider Security: Ensure OVH’s infrastructure adheres to security best practices.
4. No Immediate Action Required: IP is low-risk, but subnet-level risks warrant closer scrutiny.
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Source: IPDebrief Threat Intelligence Platform | Generated: 2026-06-14
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-san4.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca013-san4.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 | 24% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 21% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-10 16:14:00 UTC |
| Last Seen | 2026-06-27 17:48:44 UTC |
| Profile Built | 2026-06-28 11:54:10 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 28 |
Full dossier details are available via our API.