51.195.244.136
IP Intelligence Briefing: 51.195.244.136
*Generated from IPDebrief analysis*
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**1. Risk Assessment**
- Overall Risk Score: Moderate (50/100)
- Threat Indicators: No direct malicious activity detected in current profile.
- Observation History:
- Listed in 8 threat feeds (2 high-severity, 6 medium-severity) as of 2026-06-07.
- Subnet abuse density: 0.4862 (mixed classification, 19% inherited risk).
- Recent scans show no active exploits or open ports.
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**2. Ownership & Geolocation**
- Organization: Ahrefs Pte Ltd (AS16276, OVH provider).
- Location: London, England, UK (geolocation inferred with 750km accuracy radius).
- Network Role: Hosting provider (OVH infrastructure), not residential or mobile.
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**3. Threat Observations**
- Recent Activity:
- Flagged in DNS-based threat feeds (e.g., DNSBL lists).
- No active C2 domains, TLS certificates, or open services detected.
- Historical Context:
- First observed in May 2026, with no persistent malicious behavior.
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**4. Network Relationships**
- Subnet: 51.195.244.136/24.
- Neighbors:
- 100 IPs in subnet (96 medium-risk, 4 low-risk).
- Abuse Density: 48.62% (mixed benign/malicious activity).
- Shared Network: Linked to OVH network (AS282347336), suggesting centralized cloud hosting.
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**5. Actionable Insights**
- SOC Recommendations:
- Monitor DNS activity for unusual queries to `ahrefs.net` or subdomains.
- Investigate threat feed listings (e.g., DNSBLs) for potential false positives or evolving risks.
- Consider blocking the subnet (51.195.244.0/24) if lateral movement is suspected.
- Context: The IP appears legitimate (hosting provider) but has been flagged in multiple feeds. Verify if the activity is benign (e.g., misconfigured DNS) or part of a broader campaign.
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Note: No immediate remediation required, but continuous monitoring is advised due to inconsistent threat signals.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Ahrefs Pte Ltd Dmytro |
| ASN | AS16276 |
| Network Name | — |
| CIDR Block | 51.195.0.0/16 |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-uk000-san136.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk000-san136.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 | Tier 3 — Basic operator with some routing infrastructure |
🔌 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 | 24% | 2 | 3 |
| services | 17% | 2 | 3 |
| ownership | 22% | 3 | 4 |
| reputation | 28% | 1 | 3 |
| geolocation | 25% | 2 | 2 |
| Overall | 24% | 12 | 19 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-14 01:10:14 UTC |
| Last Seen | 2026-06-28 00:11:43 UTC |
| Profile Built | 2026-06-28 18:17:28 UTC |
| Data Freshness | Live |
| Signal Types | 27 |
| Total Observations | 31 |
Full dossier details are available via our API.