51.89.129.111
IP Intelligence Briefing: 51.89.129.111
*Generated via IPDebrief Analysis*
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**1. Threat Profile**
- Risk Score: Low (25/100)
- Threat Indicators: No active malware, phishing, or exploit activity detected.
- Network Role: CloudCompute instance under OVH, likely a firewalled server.
- Ownership: Registered to Ahrefs Pte Ltd (legitimate SEO company).
- Geolocation: London, England, UK.
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**2. Observation History**
- Latest Scan (2026-06-09):
- No open ports or services detected.
- DNS records link to `proxy-uk008-san111.ahrefs.net` (Ahrefs infrastructure).
- Earlier Scan (2026-06-01):
- Scanned for vulnerabilities; no critical issues found.
- Subnet abuse density: 0% (low risk).
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**3. Relationships & Dependencies**
- DNS Associations:
- Linked to `proxy-uk008-san111.ahrefs.net` (Ahrefs).
- Network Connections:
- Part of OVH network (ASN 16276).
- No direct ties to known malicious subnets or campaigns.
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**4. Neighborhood Analysis**
- Subnet: 51.89.129.111/24
- Neighbor Risk:
- 100 total IPs: 78 low-risk, 22 medium-risk.
- No high-risk neighbors detected.
- Abuse Density: 0% (clean subnet).
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**5. Recommendations**
- Monitoring: Track DNS and network activity for anomalies, especially given mixed subnet risk.
- Firewall: Allow traffic only to/from trusted networks; no immediate blocking required.
- Investigation: Verify Ahrefs' use of this IP (e.g., verify if it’s part of their proxy infrastructure).
Conclusion: This IP is associated with a legitimate entity and shows no active malicious behavior. However, ongoing monitoring is advised due to the mixed-risk subnet and sparse threat intelligence coverage.
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 | — |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-uk008-san111.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk008-san111.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 | Hosting — Infrastructure provider without advanced routing |
🔌 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 | 43% | 2 | 5 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 20% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 25% | 2 | 2 |
| Overall | 24% | 10 | 16 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-20 11:47:00 UTC |
| Last Seen | 2026-06-28 11:59:14 UTC |
| Profile Built | 2026-06-29 06:03:22 UTC |
| Data Freshness | Live |
| Signal Types | 23 |
| Total Observations | 27 |
Full dossier details are available via our API.