51.89.129.54
IP Intelligence Briefing: 51.89.129.54
Date: 2026-06-14
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**1. Core Profile**
- Risk Rating: Low Risk (Risk Score: 25 / 100)
- Ownership:
- ASN: 16276
- Organization: Ahrefs Pte Ltd Dmytro (OVH Cloud infrastructure)
- Geolocation: London, England, GB (plausible, 473 km from probe)
- Network Role:
- Provider: OVH CloudCompute
- Classification: Hosting / Cloud service (no open ports, no public services)
- Subnet: 51.89.129.54/24 (mixed abuse density: 48.83%)
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**2. Threat & Behavior**
- Threat Indicators: None detected (no malware, phishing, or known attacker associations).
- DNS:
- Resolves to `proxy-uk008-san54.ahrefs.net` (likely internal proxy).
- No email authentication records (SPF/DKIM/DMARC).
- Services: No open ports or TLS services detected.
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**3. Observation History**
- Recent Activity:
- Stable since June 3, 2026 (no significant risk score changes).
- Geo validation consistent (RTT: 537–571 ms, ~473 km distance).
- Network Stability:
- BGP route stability: 0 changes in 30 days.
- DNSSEC and CAA records validated.
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**4. Relationships & Neighbors**
- Network Relationships:
- Linked to OVH ASN 16276 (same provider).
- Subnet 51.89.129.54/24 contains 256 IPs (133 active, 125 flagged as risky).
- Neighbor Risk:
- Subnet abuse density: 48.83% (45 low-risk, 55 medium-risk IPs).
- Neighboring IPs show mixed activity, but no direct ties to this IP.
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**5. Recommendations**
- Monitoring:
- Track subnet 51.89.129.0/24 for emerging threats, as 55% of neighbors are medium-risk.
- Verify DNS resolution patterns for internal proxy hosts.
- Action:
- No immediate blocking required. This IP is likely a legitimate cloud host with no malicious activity.
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Source: IPDebrief Threat Intelligence Platform
Note: This IP is associated with Ahrefs, a legitimate SEO tool provider. Ensure no false positives from subnet-level risks.
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-san54.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk008-san54.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 | 26% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 20% | 2 | 3 |
| ownership | 20% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 32% | 2 | 3 |
| Overall | 23% | 10 | 17 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:04:27 UTC |
| Last Seen | 2026-06-27 07:31:37 UTC |
| Profile Built | 2026-06-28 01:37:05 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 28 |
Full dossier details are available via our API.