15.235.98.35
IP Intelligence Briefing: 15.235.98.35
*Generated via IPDebrief tools*
---
**1. Core Profile**
- Risk Score: Moderate (40/100).
- Ownership: Registered to Ahrefs Pte Ltd (OVH ASN 16276).
- Geolocation:
- Country: Canada (CA), City: Singapore.
- Geo Validation: RTT (27ms) inconsistent with 6,082km distance (minimum possible RTT: 121.6ms).
- Network Role: CloudCompute (OVH hosting).
- Threat Indicators: No direct malicious activity detected.
---
**2. Observation History**
- Recent Activity:
- 1 observation recorded (June 13, 2026) with 8 threat feeds, 1 abuse density signal, and 3 DNS signals.
- Abuse Density: Subnet (15.235.98.0/24) classified as high_abuse (0.5391 density).
- Neighbor Risk: 96/100 IPs in subnet rated medium/low risk, but 138 neighbors flagged as threats.
---
**3. Relationships**
- Linked Entities:
- Subnet: OVH-CUST-281059698 (15.235.98.0/24).
- DNS: proxy-ca019-san35.ahrefs.net (Ahrefs-hosted).
- No direct links to known malicious organizations or campaigns.
---
**4. Neighborhood Analysis**
- Subnet Summary:
- 100 total IPs, 96 rated medium/low risk, 4 high risk.
- High Abuse Density: Subnet classified as high_abuse (138 threat siblings).
- Neighbor Risks: 96% of subnet IPs have low/medium risk, but 138 IPs flagged as threats.
---
**5. Actionable Insights**
- SOC Prioritization:
- Monitor subnet (15.235.98.0/24) for lateral movement or cluster-based threats.
- Validate geolocation anomalies (Singapore vs. Canada) to rule out proxy/misconfigured hosts.
- Check Ahrefs Pte Ltd for hosting compliance and potential misuse of cloud infrastructure.
- Recommendations:
- Block high-risk subnet IPs (e.g., via iptables/nftables) if traffic patterns are suspicious.
- Investigate DNS resolver ties to proxy-ca019-san35.ahrefs.net for potential command-and-control activity.
---
Note: No direct malware or attack indicators detected, but subnet context suggests elevated risk. Further analysis of Ahrefs' infrastructure and geolocation discrepancies is advised.
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-san35.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca019-san35.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 | 32% | 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 00:28:26 UTC |
| Profile Built | 2026-06-27 14:41:50 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 26 |
Full dossier details are available via our API.