15.235.98.153
IP Intelligence Briefing: 15.235.98.153
Date: 2026-06-13
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership: Owned by OVH (ASN 16276), registered to Ahrefs Pte Ltd (netname: OVH-CUST-281059698).
- Geolocation:
- Country: Canada (CA)
- City: Singapore
- Plausibility: Geo validation failed due to unusually low RTT (27ms) for a 6,082km distance, suggesting spoofed location data.
- Network Role:
- Hosted by OVH, classified as CloudCompute (Hosting).
- No open ports, no TLS certificates, no HTTP services detected.
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**2. Threat Indicators**
- No malicious activity detected:
- No abuse confidence scores, blacklists, or threat feeds.
- Not associated with Tor, VPNs, or known attacker campaigns.
- DNS:
- Resolves to proxy-ca019-san153.ahrefs.net (Ahrefs domain).
- No email authentication records (SPF/DMArC).
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**3. Observation History**
- First Observed: 2026-06-02
- Recent Activity:
- Geo validation anomalies persist (RTT < minimum possible for distance).
- Subnet abuse density: 0.3913 (mixed risk, 99 threat siblings in /24 subnet).
- No persistent malicious behavior.
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**4. Network Relationships**
- Linked Entities:
- OVH-CUST-281059698 (same network).
- Ahrefs.net (DNS domain).
- Subnet: 15.235.98.0/24 (253 IPs, 180 active, 99 flagged as high/medium risk).
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**5. Neighborhood Analysis**
- Subnet Risk Distribution:
- Low Risk: 83 IPs (riskScore 25).
- Medium Risk: 17 IPs.
- Abuse Density: 39.13% (mixed benign/malicious activity).
- Notable Neighbors:
- IPs with higher risk scores (e.g., 15.235.98.0, 15.235.98.1).
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**6. Recommendations**
- Monitor Subnet: Track high-risk neighbors in 15.235.98.0/24 for lateral movement or shared infrastructure risks.
- Validate Geolocation: Investigate spoofed location data (RTT inconsistency).
- Maintain Baseline: No immediate action required for 15.235.98.153, but continue monitoring for anomalies.
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Source: 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-281059698 |
| CIDR Block | 15.235.98.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca019-san153.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca019-san153.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 | 26% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 17% | 2 | 3 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 23% | 10 | 16 |
| 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 00:22:04 UTC |
| Profile Built | 2026-06-27 14:36:06 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 29 |
Full dossier details are available via our API.