15.235.98.123
IP Intelligence Briefing: 15.235.98.123
*Generated via IPDebrief tools: profile, history, relationships, neighbors*
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**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership:
- ASN: 16276 (OVH)
- Organization: Dmytro, Ahrefs Pte Ltd
- Network: 15.235.98.0/24 (OVH-CUST-281059698)
- Geolocation:
- Country: Canada (CA)
- City: Singapore
- Coordinates: Latitude 56.13, Longitude -106.35
- Threat Indicators:
- No malicious indicators, blacklists, or campaigns detected.
- Not a Tor exit node, spam source, or known attacker.
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**2. Network Role & Infrastructure**
- Cloud Hosting: Confirmed as a cloud-compute instance (OVH).
- Services:
- No open ports or TLS services detected.
- DNS: PTR record points to `proxy-ca019-san123.ahrefs.net` (ahrefs.net domain).
- Control Plane:
- BGP prefix: `15.235.0.0/17` (OVH).
- DNSSEC: Valid.
- DNSBL listings: 1/8 total lists.
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**3. Historical Observations**
- Recent Activity:
- Subnet abuse density: 0.5039 (high_abuse classification).
- Inherited risk: 20 (from subnet).
- Threat persistence: No persistent malicious activity detected.
- Geolocation Consensus: Plausible (3000km accuracy radius).
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**4. Network Relationships**
- Linked Entities:
- Same network: `OVH-CUST-281059698` (15.235.98.0/24).
- DNS: `ahrefs.net` (hosted domains: none).
- No certificate or hostname relationships detected.
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**5. Neighborhood Analysis**
- Subnet: 15.235.98.0/24
- Neighbor Risk Distribution:
- High Risk: 0 IPs
- Medium Risk: 96 IPs
- Low Risk: 4 IPs
- Abuse Density: 50.39% (high_abuse classification).
- Active Siblings: 215/256 IPs in subnet.
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**6. Recommendations**
- Monitor Subnet: High abuse density suggests potential for lateral movement or compromised hosts.
- Block High-Risk Neighbors: Consider blocking IPs with elevated risk scores in the same subnet.
- Verify DNS: Investigate the `ahrefs.net` domain for potential proxy or C2 server activity.
- Check for Anomalies: Monitor for unexpected DNS changes or service exposure in the subnet.
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*End of Briefing*
*Generated by IPDebrief | Copyright © 2026 Jason Alberino*
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-281059698 |
| CIDR Block | 15.235.98.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca019-san123.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca019-san123.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 | 12% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 35% | 2 | 3 |
| Overall | 23% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:03:46 UTC |
| Last Seen | 2026-06-27 00:20:14 UTC |
| Profile Built | 2026-06-27 14:33:53 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 26 |
Full dossier details are available via our API.