# IP Intelligence Briefing: 51.195.244.223/32
Classification: Moderate Risk | Date: 2026-06-20 | Source: IPDebrief Intelligence Platform
---
## Executive Summary
IP address 51.195.244.223 presents a moderate risk profile (score: 40/100) associated with OVH cloud infrastructure in London, UK. The IP is classified as hosting infrastructure with a PTR hostname mapping to the ahrefs.net domain. While no active threat indicators were detected, the IP resides within a subnet exhibiting high abuse density (0.8438) with 216 out of 256 sibling IPs flagged as threats.
---
## Technical Profile
| Attribute | Value |
|---|---|
| **IP Address** | 51.195.244.223/32 |
| **Reputation** | Moderate Risk (40/100) |
| **Provider** | OVH (ASN 16276) |
| **Organization** | Ahrefs Pte Ltd Dmytro |
| **Geolocation** | GB, England, London |
| **Infrastructure Type** | Cloud Compute (Hosting) |
| **DNS PTR** | proxy-uk000-san223.ahrefs.net |
| **Network Role** | Firewalled / No Active Services |
---
## Threat Assessment
Current Threat Indicators: None detected
- No known attacker reputation
- No spam source classification
- No Tor exit node activity
- Zero blacklist entries
Control Plane Signals:
- DNSBL Listed: 1 of 8 total lists
- Operator Score: 0.2174 (Minimal)
- RPKI State: Not verified
- Route Stability: False
---
## Neighborhood Analysis (51.195.244.0/24)
The /24 subnet demonstrates elevated threat activity:
- Total Siblings: 256
- Active Siblings: 228
- Threat Siblings: 216
- Abuse Density: 0.8438 (High)
- Inherited Risk: 33/100
Risk distribution within the subnet shows 69 low-risk, 31 medium-risk, and 0 high-risk neighboring IPs, indicating concentrated threat activity rather than widespread abuse.
---
## Historical Observations
Recent signal history (2026-06-20) reveals consistent classification patterns:
- Abuse density maintained at 0.8438
- Provider consistently identified as OVH
- Geolocation signals consistently point to GB (London)
- Operator classification stable at "Minimal"
- No observed threat persistence patterns
---
## Related Entities
Network Relationships:
- 40 relationships identified to OVH network infrastructure (OVH_282347336)
- Same network associations indicate shared infrastructure footprint
Associated Domain:
- ahrefs.net (PTR: proxy-uk000-san223.ahrefs.net)
---
## Recommended Actions
Based on the moderate risk profile and hosting infrastructure classification:
1. Monitor Traffic: Implement passive monitoring for outbound connections to this IP
2. Block if Needed: No immediate blocking required; apply allow-deny rules based on your organization's threat tolerance
3. Subnet Awareness: Monitor the 51.195.244.0/24 subnet due to high abuse density (0.8438)
4. DNS Verification: Verify legitimate ahrefs.net traffic patterns against observed activity
Firewall Rule Example (iptables):
```bash
iptables -A OUTPUT -d 51.195.244.223/32 -m state --state NEW,ESTABLISHED -j ACCEPT
```
---
## Analyst Notes
The IP address appears to be legitimate hosting infrastructure associated with Ahrefs (SEO analytics platform). While the subnet shows elevated abuse density, this is characteristic of OVH cloud hosting environments with multiple tenants. No active malicious indicators were detected. SOC teams should monitor for anomalous traffic patterns rather than applying blanket blocking policies.
---
*Report generated from IPDebrief intelligence data. Last updated: 2026-06-20*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Ahrefs Pte Ltd Dmytro |
| ASN | AS16276 |
| Network Name | โ |
| CIDR Block | โ |
| RIR | ARIN |
| Country | โ |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR | proxy-uk000-san223.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk000-san223.ahrefs.net |
๐ DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting โ Infrastructure provider without advanced routing |
๐ 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 | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 30% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 20% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 24% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-22 03:10:14 UTC |
| Last Seen | 2026-06-28 17:47:53 UTC |
| Profile Built | 2026-06-29 05:50:42 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 23 |
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