51.89.129.153
IP Intelligence Briefing: 51.89.129.153
*Generated via IPDebrief tools (profile, history, relationships, neighbors)*
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**1. Core Profile**
- Risk Score: Moderate (40/100)
- Ownership: Registered to Ahrefs Pte Ltd Dmytro (ASN 16276, OVH provider).
- Geolocation: Located in London, England (GB), but coordinates are unverified.
- Network Role: Cloud compute instance (OVH infrastructure), no public services detected.
- Threat Indicators: No malicious activity, no DNS/IP abuse, or blacklisted entries.
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**2. Observation History**
- Stability: No significant changes in risk or geolocation over time.
- Signal Trends:
- DNSSEC/CAA: Validated (no issues).
- BGP: Stable routes with OVH ASN (16276).
- Ownership: Unchanged since 2001 (ASN allocation).
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**3. Relationships**
- Linked Entities:
- Subnet: OVH_282347344 (same network).
- Hostname: `proxy-uk008-san153.ahrefs.net` (DNS PTR record).
- Parent ASN: 16276 (OVH).
- No known malicious relationships detected.
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**4. Neighborhood Analysis**
- Subnet: 51.89.129.0/24 (OVH infrastructure).
- Abuse Density: Low (0.5117), but 131/256 sibling IPs show higher risk scores.
- Neighbors:
- High-risk neighbors: 131 IPs with elevated threat scores.
- Active hosts: 137 IPs in the subnet.
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**5. Actionable Insights**
- Monitor Subnet: The subnet contains a mix of high- and low-risk IPs; investigate higher-risk neighbors for potential lateral movement or shared infrastructure risks.
- Verify Geolocation: Coordinates are missing; confirm location via additional sources to rule out spoofing.
- Cloud Infrastructure: Given the OVH cloud role, ensure access controls are stringent to prevent misuse of the cloud environment.
- No Immediate Threat: The IP itself shows no malicious indicators, but its subnet warrants closer scrutiny due to neighboring risks.
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Recommendation: Continue monitoring for unusual activity in the subnet, especially given the presence of high-risk neighbors. No immediate blocking required unless further threats are detected.
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 | 51.89.0.0/16 |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-uk008-san153.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk008-san153.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 | 35% | 2 | 3 |
| routing | 27% | 2 | 3 |
| services | 21% | 2 | 2 |
| ownership | 27% | 3 | 4 |
| reputation | 30% | 1 | 3 |
| geolocation | 31% | 2 | 3 |
| Overall | 29% | 12 | 18 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-16 21:01:17 UTC |
| Last Seen | 2026-06-28 04:04:31 UTC |
| Profile Built | 2026-06-29 04:10:01 UTC |
| Data Freshness | Live |
| Signal Types | 25 |
| Total Observations | 30 |
Full dossier details are available via our API.