# IP INTELLIGENCE BRIEFING
Target IP: 51.195.183.241/32
Classification: Moderate Risk Hosting Infrastructure
Date: Current
## EXECUTIVE SUMMARY
IP 51.195.183.241 is a cloud-based hosting address registered to OVH (ASN 16276) in London, England. The IP is associated with Ahrefs Pte Ltd Dmytro and resolves to proxy-uk003-san241.ahrefs.net. Risk assessment yields a score of 40 (Moderate Risk) with the IP classified as hosting infrastructure.
## NETWORK ATTRIBUTES
- Provider: OVH SAS (ASN 16276)
- Location: London, England, GB
- Infrastructure Type: CloudCompute
- Service Purpose: Firewalled / No Services
- Registration: 9,229 days (approximately 25 years)
- BGP Prefix: 51.195.0.0/16
- AS Path: 57866 16276
- Route Stability: Stable
## THREAT ASSESSMENT
- Risk Score: 40 (Moderate)
- Abuse Confidence Score: Not reported
- Blacklist Count: 0
- DNSBL Listed: 1 of 8 total lists
- Known Attacker: No
- Spam Source: No
- Tor Exit: No
- Campaign Matches: None
The IP lacks specific threat indicators and is not associated with known malicious campaigns, spam sources, or tor exit nodes. However, the absence of active services and firewalled status limits observable threat intelligence.
## NEIGHBORHOOD ANALYSIS
The /24 subnet (51.195.183.0/24) exhibits elevated abuse characteristics:
- Abuse Density: 0.6836 (High abuse)
- Classification: high_abuse
- Total Siblings: 256
- Active Siblings: 195
- Threat Siblings: 175
- Inherited Risk: 27
The subnet shows a high concentration of active and threat-classified sibling IPs, suggesting this is part of a larger hosting infrastructure with mixed use cases.
## OBSERVATION HISTORY
Historical signals indicate consistent classification as cloud hosting infrastructure. Recent observations confirm:
- Provider: OVH
- Classification: CloudCompute
- Infrastructure Type: Hosting
- Network Role: Active
The IP demonstrates temporal stability with no ownership changes and consistent risk persistence patterns.
## RELATED ENTITIES
The IP maintains relationships with 36 network entities, primarily identified as OVH_282347339. Multiple connections to the same network indicate this IP is part of a larger hosted infrastructure.
## RECOMMENDED ACTIONS
Given the moderate risk score and high-abuse neighborhood classification, the following actions are recommended:
Immediate Mitigation:
```
iptables -A INPUT -s 51.195.183.241 -j DROP
nft add rule inet filter input ip saddr 51.195.183.241 drop
```
WAF Configuration:
```
# Cloudflare WAF
action: block
expression: ip.src eq 51.195.183.241
# AWS WAF
Addresses: 51.195.183.241/32
Description: IPDebrief risk 40
```
## INTELLIGENCE CONTEXT
The IP resolves to ahostname associated with ahrefs.net, a legitimate SEO analytics provider. This suggests the infrastructure may be used for legitimate purposes. However, the high abuse density of the parent subnet warrants continued monitoring.
## SOC RECOMMENDATIONS
1. Monitor traffic patterns from this IP for anomalies
2. Block at perimeter if not already on allowlist
3. Correlate with known Ahrefs infrastructure if applicable
4. Reassess based on observed traffic behavior and threat indicators
---
*This briefing is based on IPDebrief intelligence platform data. Recommendations should be combined with other signals before taking action.*
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 | 51.195.0.0/16 |
| RIR | ARIN |
| Country | โ |
| Abuse Contact | Available via RDAP |
๐ DNS Intelligence
| PTR | proxy-uk003-san241.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk003-san241.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 | 24% | 2 | 3 |
| services | 12% | 2 | 2 |
| ownership | 35% | 3 | 5 |
| reputation | 28% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 28% | 12 | 20 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-19 23:50:41 UTC |
| Last Seen | 2026-06-28 10:38:30 UTC |
| Profile Built | 2026-06-29 04:43:05 UTC |
| Data Freshness | Live |
| Signal Types | 25 |
| Total Observations | 30 |
Full dossier details are available via our API.