# IP INTELLIGENCE BRIEFING: 51.195.215.233/32
Date: 2026-06-20
Classification: Moderate Risk
Analyst: IPDebrief Intelligence Team
---
## EXECUTIVE SUMMARY
IP address 51.195.215.233 operates within the OVH Cloud infrastructure (ASN: 16276) and is associated with domain ahrefs.net. The IP exhibits a risk score of 40/100 (Moderate Risk), primarily driven by subnet-level abuse density. The address is hosted in London, England, and shows no active services or open ports.
---
## INFRASTRUCTURE PROFILE
| Attribute | Value |
|---|---|
| **IP Address** | 51.195.215.233/32 |
| **Risk Score** | 40/100 |
| **Provider** | OVH |
| **Organization** | Ahrefs Pte Ltd Dmytro |
| **ASN** | 16276 |
| **Country** | GB (England) |
| **Infrastructure Type** | CloudCompute |
| **Hosting Status** | Yes |
| **DNS Entry** | proxy-uk009-san233.ahrefs.net |
---
## THREAT INDICATORS
Current Risk Assessment:
- No known threat campaigns detected
- No Tor exit node activity
- No known attacker designation
- No spam source classification
- Zero open ports/services detected
Abuse Context:
- DNSBL Listed: 1 of 8 threat feeds
- Operator Score: 0.2174 (Minimal)
- Abuse Confidence: Not quantified
Subnet Context:
- Subnet: 51.195.215.0.0/24
- Abuse Density: 0.793 (High)
- Active Siblings: 238 of 256 IPs
- Threat Siblings: 203
- Inherited Risk: 31
---
## OBSERVATION HISTORY
Recent signal observations (2026-06-20) indicate:
- Consistent cloud hosting classification (OVH)
- Stable network infrastructure assignment
- Geographic resolution to England, GB with 750km accuracy radius
- No evidence of malicious behavior escalation
Temporal analysis shows:
- Ownership changes: 0
- Threat persistence days: 0
- Threat observation count: 1
- Not persistently malicious
---
## NETWORK RELATIONSHIPS
The IP maintains 36 detected relationships, including multiple same-network associations with OVH infrastructure identifier OVH_282347345. Network classification confirms hosting infrastructure placement.
Neighbor Analysis:
- 100 neighboring IPs analyzed within /24 subnet
- Risk distribution: 66 medium (66%), 34 low (34%), 0 high
- Neighbor risk scores range: 25-40
- No high-risk neighbors detected
---
## RECOMMENDED ACTIONS
Based on risk profile and observed characteristics, the following defensive measures are recommended:
Immediate Mitigation:
```
# iptables
iptables -A INPUT -s 51.195.215.233 -j DROP
# nftables
nft add rule inet filter input ip saddr 51.195.215.233 drop
# Nginx
deny 51.195.215.233;
# pfSense
51.195.215.233/32
```
CDN/WAF Integration:
```json
{
"Cloudflare WAF": {
"description": "Block 51.195.215.233 โ IPDebrief risk score 40",
"action": "block",
"filter": {
"expression": "ip.src eq 51.195.215.233"
}
},
"AWS WAF": {
"Addresses": ["51.195.215.233/32"],
"Description": "IPDebrief risk 40"
}
}
```
---
## ANALYST NOTES
The IP address 51.195.215.233 presents moderate risk primarily due to high-density abuse in its parent subnet. While no direct malicious indicators are present at this address level, the subnet context warrants defensive posturing. The absence of open services and active campaigns suggests limited immediate threat, but the high abuse density of 0.793 indicates this infrastructure is frequently leveraged for malicious activity.
Recommended Approach: Implement blocking at network perimeter, with consideration for subnet-level controls (51.195.215.0.0/24) if organizational policy permits. Monitor for any changes in service status or threat indicators.
---
*Report generated by IPDebrief Intelligence Platform*
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-uk009-san233.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk009-san233.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 | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 25% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-18 03:23:25 UTC |
| Last Seen | 2026-06-28 06:37:53 UTC |
| Profile Built | 2026-06-29 00:43:09 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 24 |
Full dossier details are available via our API.