# IP Intelligence Briefing: 15.235.27.198/32
## Executive Summary
IP 15.235.27.198 is a moderate-risk (score: 40) cloud infrastructure address hosted on OVH network infrastructure under the organization Dmytro, Ahrefs Pte Ltd (ASN 16276). The IP resolves to the ahrefs.net domain with hostname proxy-ca013-san198.ahrefs.net. The address operates in a high-abuse subnet (15.235.27.0/24) with an abuse density of 0.668, where 171 of 256 sibling IPs are flagged as threats.
## Profile Assessment
- Risk Classification: Moderate Risk (40/100)
- Network Provider: OVH (CloudCompute infrastructure)
- Organization: Dmytro, Ahrefs Pte Ltd
- CIDR Block: 15.235.27.0/24
- Geolocation: Reported as CA (Canada), but geolocation data is inconsistent with Singapore coordinates. RTT validation flagged a violationβmeasured 27ms vs. minimum possible 121.6ms for reported distance of 6,082km.
- Network Role: Cloud hosting with no open services detected. Firewall/No Services classification.
## DNS and Hostname Analysis
- PTR Record: proxy-ca013-san198.ahrefs.net
- Domain: ahrefs.net
- Forward Resolution: Unconfirmed
- Email Authentication: No SPF or DMARC records detected
- DNSBL Status: Listed on 1 of 8 DNSBLs
## Threat Indicators
- Abuse Confidence Score: Not available
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
- Blacklist Count: 0 (despite DNSBL listing)
- Known Campaigns: None correlated
- Cert Matches: 0
- Campaign Likelihood: None
## Observation History
The IP has 22 recorded observations. Recent signals (2026-06-20) indicate:
- Ownership classification as OVH cloud infrastructure with confidence 0.85
- Domain resolution to ahrefs.net with confidence 0.80
- Geolocation signals showing Canadian country code with low confidence (0.18)
- Control plane operator score of 0.2174 (labeled "Minimal")
- Single threat observation recorded
- Not persistently malicious
## Neighborhood Analysis (15.235.27.0/24)
- Total Subnet IPs: 256
- Active Siblings: 220
- Threat-Classified Siblings: 171
- Risk Distribution: 0 high-risk, 83 medium-risk, 17 low-risk
- Abuse Density: 0.668 (high)
- Inherited Risk: 26
## Security Recommendations
Based on the moderate risk classification and high-abuse neighborhood context:
1. Monitor Closely: The subnet exhibits elevated abuse density. Implement enhanced monitoring on traffic from 15.235.27.0/24.
2. Rate Limiting: Apply rate limiting rules for connections from this IP due to cloud hosting nature and firewall status.
3. Geolocation Validation: The conflicting geolocation data (Canada vs. Singapore coordinates with RTT mismatch) warrants validation before allowing untrusted access.
4. DNSBL Review: Investigate the 1 DNSBL listing to determine specific reasons for inclusion.
5. Email Authentication: The absence of SPF and DMARC records for ahrefs.net may indicate misconfiguration or potential abuse vectors.
## Intelligence Confidence
- Profile Confidence: Moderate (riskScore 40, multiple data sources)
- Geolocation Confidence: Low (RTT violation indicates data inconsistency)
- Threat Confidence: Low (no active threat indicators, but neighborhood context suggests caution)
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*Report generated by IPDebrief intelligence platform. All data sourced from real-time IP intelligence collection.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ 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 | β |
π DNS Intelligence
| PTR | proxy-ca013-san198.ahrefs.net |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca013-san198.ahrefs.net |
π DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting β Infrastructure provider without advanced routing |
π 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 | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― 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 | 20% | 2 | 3 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 30% | 2 | 3 |
| Overall | 22% | 10 | 16 |
| Data Coherence | Mostly Consistent (80%) β 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-17 15:11:56 UTC |
| Last Seen | 2026-06-28 05:08:46 UTC |
| Profile Built | 2026-06-28 23:14:12 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 25 |
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