15.235.98.244
## IP Intelligence Briefing: 15.235.98.244/32
Classification: Moderate Risk | Date: Current
Intel Source: IPDebrief Automated Analysis
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Executive Summary
IP 15.235.98.244/32 presents a moderate risk profile (score: 40) associated with OVH cloud infrastructure hosting Ahrefs proxy services. The IP exhibits DNS blacklist presence and operates within a high-abuse-density subnet. While no active threat indicators or known campaigns were identified, the network environment warrants monitoring.
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Infrastructure Profile
| Attribute | Value |
|---|---|
| **Organization** | Dmytro, Ahrefs Pte Ltd |
| **ASN** | 16276 |
| **Provider** | OVH |
| **Infrastructure** | CloudCompute, Hosting |
| **CIDR Block** | 15.235.98.0/24 |
| **Country/Region** | CA (Singapore discrepancy) |
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Network Indicators
- DNS Reputation: Resolves to `proxy-ca019-san244.ahrefs.net`
- DNS Blacklist Status: Listed on 1 of 8 DNSBL lists
- Service Status: Firewalled / No Services detected
- RTT Violation: Geographic validation flagged (RTT 27ms vs minimum possible 121.6ms for stated distance)
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Neighborhood Analysis
| Metric | Value |
|---|---|
| **Subnet Abuse Classification** | High Abuse |
| **Abuse Density** | 0.7344 |
| **Active Siblings** | 246 of 256 |
| **Threat Siblings** | 188 |
| **Inherited Risk Score** | 29 |
The /24 subnet (15.235.98.0/24) shows elevated activity with 188 threat-identified neighbors out of 246 active siblings, indicating a potentially compromised hosting environment.
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Historical Observation (22 signals)
Recent observations confirm:
- Consistent cloud infrastructure classification
- Persistent subnet-level threat associations
- No significant reputation degradation patterns
- 2026-06-20: Multiple signal types observed including network classification, geolocation, and DNS resolution
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Threat Assessment
No Active Threat Indicators Detected:
- Not a known attacker
- Not a Tor exit node
- Not associated with known campaigns
- No open ports or services exposed
- No email authentication failures (SPF/DMARC not configured)
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Recommended Actions
Firewall/Network:
- Monitor inbound traffic patterns to this subnet
- Consider rate-limiting given DNSBL presence
- No immediate blocking required due to moderate risk score
Intelligence Monitoring:
- Track subnet-level abuse trends in 15.235.98.0/24
- Monitor DNSBL listing changes
- Observe for any service exposure changes
Contextual Note: The IP resolves to Ahrefs proxy infrastructure (proxy-ca019-san244.ahrefs.net), which may indicate legitimate web scraping or proxy services rather than malicious activity. However, the high-abuse-density environment and DNSBL presence warrant continued observation.
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End of Briefing
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-san244.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca019-san244.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 | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 24% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-21 20:59:21 UTC |
| Last Seen | 2026-06-28 15:31:41 UTC |
| Profile Built | 2026-06-29 09:37:20 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 26 |
Full dossier details are available via our API.