15.235.27.59
IP Intelligence Briefing: 15.235.27.59
*Generated via IPDebrief analysis*
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**Core Profile**
- Risk Score: Moderate (40/100)
- Provider: OVH (ASN 16276)
- Organization: Ahrefs Pte Ltd (OVH-CUST-281059692)
- Geolocation: Registered to Singapore (CA), but geoPlausible is false (RTT discrepancy detected).
- Network Role: CloudCompute infrastructure (firewalled, no public services).
- Threat Indicators: No malicious activity detected (no indicators, blacklists, or campaigns).
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**Observation History**
- Latest Activity: June 17, 2026 (abuse density 69.53% in subnet).
- Trend: Subnet shows high abuse density (27% inherited risk), with 178/256 siblings flagged as threats.
- Geo Anomaly: RTT of 28ms detected for 6,082km distance (implausible for physical location).
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**Network Relationships**
- Linked Entities:
- Subnet: 15.235.27.0/24 (OVH-CUST-281059692)
- Hostname: `proxy-ca013-san59.ahrefs.net` (DNS PTR confirmed).
- DNS: Resolves to Ahrefs.net, with DNSSEC and CAA records.
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**Subnet Neighborhood**
- Subnet: 15.235.27.0/24
- Abuse Density: 69.53% (classified as high_abuse).
- Neighbor Risk: 98% medium-risk IPs, 2% low-risk.
- Active Siblings: 217/256 IPs in subnet.
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**Actionable Insights**
1. Monitor Subnet: High abuse density in the subnet suggests potential for lateral movement or compromised hosts.
2. Verify Geolocation: Investigate the geoPlausible false flag; possible spoofing or data center routing.
3. Cloud Infrastructure: Treat as a legitimate cloud compute resource (OVH) but enforce strict access controls.
4. DNS Security: Confirm DNSSEC and CAA records for `ahrefs.net` to prevent spoofing.
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Conclusion: 15.235.27.59 is part of a high-risk subnet managed by OVH for Ahrefs. While the IP itself shows no malicious activity, its environment warrants closer scrutiny due to subnet abuse patterns and geolocation anomalies.
*Generated by 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-281059692 |
| CIDR Block | 15.235.27.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca013-san59.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca013-san59.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 | 29% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 30% | 2 | 3 |
| Overall | 23% | 10 | 15 |
| Data Coherence | Mixed Signals (60%) — 2 contradiction(s) |
| Attribution | Very Low (20%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
⚠ Geo sources disagree on country: CA, US
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:03:45 UTC |
| Last Seen | 2026-06-27 00:05:29 UTC |
| Profile Built | 2026-06-27 14:19:03 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 27 |
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