51.89.129.195
IP Intelligence Briefing: 51.89.129.195
Date: 2026-06-08
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**1. Core Profile**
- Reputation: Moderate Risk (Risk Score: 50)
- Ownership:
- ASN: 16276 (OVH)
- Organization: Ahrefs Pte Ltd (Dubai, UAE)
- Geolocation: London, UK (ENG)
- Network Role:
- CloudCompute infrastructure (OVH)
- Hosting provider (no open ports, no TLS certs)
- Threat Indicators:
- No direct malicious activity (no indicators, spam, or campaigns)
- Subnet abuse density: High (0.5391), inherited risk: 21
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**2. Observation History**
- Recent Activity (30 days):
- Stable risk profile (no spikes in threats or scans).
- Subnet classification: High Abuse (51.89.129.195/24).
- 138 of 256 sibling IPs in subnet flagged as high risk.
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**3. Relationships**
- Network Links:
- Same network: OVH (ASN 16276)
- DNS: `proxy-uk008-san195.ahrefs.net` (Ahrefs subdomain)
- No upstream/downstream relationships identified.
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**4. Neighborhood Analysis**
- Subnet (51.89.129.195/24):
- Abuse Density: 53.91% (high risk).
- Active Siblings: 137 (138 high-risk).
- Risk Distribution: 80% medium, 20% low.
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**5. Security Actions**
- Recommended Rules (firewall/IDS):
- iptables: `iptables -A INPUT -s 51.89.129.195 -j DROP`
- Cloudflare WAF: Block IP with description "IPDebrief risk 50"
- AWS WAF: Add `51.89.129.195/32` to IP set
- Note: Risk score is moderate, but subnet abuse density warrants monitoring.
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**6. Analyst Guidance**
- Context:
- IP is part of OVH's cloud infrastructure, associated with Ahrefs (legitimate SEO tool).
- Subnet has high abuse density; potential for lateral movement or shared hosting risks.
- Next Steps:
- Monitor traffic for anomalies (e.g., unexpected DNS queries, outbound connections).
- Investigate high-risk neighbors for potentialε ³θ threats.
- Consider blocking the IP if it persists in suspicious activity or if the subnetβs risk escalates.
End of Briefing
*Generated by IPDebrief β Threat Intelligence for SOC Teams*
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 | β |
| RIR | ARIN |
| Country | β |
| Abuse Contact | Available via RDAP |
π DNS Intelligence
| PTR | proxy-uk008-san195.ahrefs.net |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk008-san195.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 | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 24% | 2 | 3 |
| reputation | 31% | 1 | 3 |
| geolocation | 25% | 2 | 2 |
| Overall | 23% | 10 | 15 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-18 09:25:05 UTC |
| Last Seen | 2026-06-28 07:17:29 UTC |
| Profile Built | 2026-06-29 01:22:03 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 24 |
Full dossier details are available via our API.