IP Intelligence Briefing: 51.89.129.17/32
*Generated via IPDebrief tools: Profile, History, Relationships, and Neighborhood Analysis*
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**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership: Registered to Ahrefs Pte Ltd (AS16276, OVH provider).
- Geolocation: London, England, UK.
- Network Role: Cloud compute infrastructure (OVH), no public services detected.
- Threat Indicators: No malicious activity observed (no blacklists, campaigns, or spam).
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**2. Observation History (30 Days)**
- Stability: Ownership and threat signals stable.
- Key Metrics:
- 0 threat observations, 0 ownership changes.
- DNS resolution consistent (linked to `proxy-uk008-san17.ahrefs.net`).
- BGP route stability confirmed (no recent anomalies).
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**3. Network Relationships**
- Same Network: Linked to OVH subnet OVH_282347344 (51.89.0.0/16).
- DNS Associations:
- Directly resolves to `proxy-uk008-san17.ahrefs.net` (likely a proxy or CDN node).
- Certificates: No TLS certificates or HTTP services detected.
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**4. Subnet Neighborhood Analysis**
- Subnet: 51.89.129.17/24.
- Abuse Density: 59.38% (High Abuse Classification).
- Neighbor Risk:
- 152/256 IPs in subnet flagged as high/medium risk.
- 14 low-risk IPs (including 51.89.129.17).
- Inherited Risk: 23 (moderate risk exposure due to subnet context).
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**5. Recommendations**
- Monitoring: Track subnet activity for lateral movement or cluster-based threats.
- Firewall: Consider blocking high-risk neighbors (e.g., 51.89.129.0/24) to mitigate subnet-level risks.
- DNS: Validate `proxy-uk008-san17.ahrefs.net` for legitimate Ahrefs infrastructure.
- Context: While the IP itself is benign, its subnetβs high abuse density warrants closer scrutiny.
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*End of Briefing*
*Generated by IPDebrief β Threat Intelligence for SOC Analysts*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Ahrefs Pte Ltd Dmytro |
| ASN | AS16276 |
| Network Name | β |
| CIDR Block | 51.89.0.0/16 |
| RIR | ARIN |
| Country | β |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR | proxy-uk008-san17.ahrefs.net |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk008-san17.ahrefs.net |
π DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting β Infrastructure provider without advanced routing |
π 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 | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 29% | 2 | 4 |
| routing | 20% | 2 | 3 |
| services | 15% | 2 | 2 |
| ownership | 24% | 3 | 4 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 25% | 12 | 19 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-19 23:50:44 UTC |
| Last Seen | 2026-06-28 10:42:02 UTC |
| Profile Built | 2026-06-29 04:46:31 UTC |
| Data Freshness | Live |
| Signal Types | 26 |
| Total Observations | 31 |
Full dossier details are available via our API.