54.38.147.104
IP Intelligence Briefing: 54.38.147.104
Date: 2026-06-15
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**1. Core Profile**
- Reputation: Moderate Risk (Risk Score: 50)
- Ownership: Registered to Ahrefs Pte Ltd (ASN 16276, OVH provider).
- Geolocation: London, England, UK (geo-plausible, 750km accuracy radius).
- Network Role: Cloud-hosted infrastructure (OVH), not a CDN, VPN, or mobile network.
- Threat Indicators: Listed in 8 threat feeds (high severity), though no specific campaigns or malware families are tied to this IP.
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**2. Observation History**
- Recent Activity (Last 30 Days):
- High-severity threats: Detected in 8+ feeds (e.g., DNS, network routing).
- DNS: Resolves to `proxy-uk005-san104.ahrefs.net` (Ahrefs subdomain).
- Network Stability: Stable BGP routing (no recent route changes).
- Risk Trends: No persistent malicious activity observed.
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**3. Relationships & Network Context**
- Linked Entities:
- Same network as OVH_282347341 (likely OVH infrastructure).
- Resolves to Ahrefs subdomain, suggesting legitimate hosting.
- Subnet Analysis (54.38.147.0/24):
- Abuse Density: 44.92% (moderate risk).
- Neighbor Risk: 41% of sibling IPs are medium-risk, 59% low-risk.
- Inherited Risk: 17% (suggests potential for lateral movement or shared infrastructure).
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**4. Threat & Mitigation Insights**
- Threat Likelihood: Low to moderate. The IP is associated with a legitimate entity but has been flagged in multiple threat feeds.
- Recommended Actions:
- Block the IP in firewalls (rules provided in tool response).
- Monitor DNS traffic to and from `ahrefs.net` for anomalies.
- Investigate subnet for potential lateral movement or shared infrastructure risks.
- Contextual Note: While the IP is linked to a legitimate company, its presence in high-severity threat feeds warrants closer scrutiny, especially if it’s part of a broader attack pattern.
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Next Steps for SOC:
- Validate the IP’s legitimacy via Ahrefs’ domain reputation.
- Correlate with other IOC’s in threat intelligence platforms.
- Consider isolating the subnet if other neighbors show similar risks.
Tool Source: IPDebrief (https://ipdebrief.com)
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 | 54.38.0.0/16 |
| RIR | ARIN |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-uk005-san104.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk005-san104.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 | 31% | 2 | 4 |
| routing | 27% | 2 | 3 |
| services | 15% | 2 | 2 |
| ownership | 27% | 3 | 4 |
| reputation | 31% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 28% | 12 | 19 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-15 08:44:36 UTC |
| Last Seen | 2026-06-28 02:13:37 UTC |
| Profile Built | 2026-06-28 20:19:29 UTC |
| Data Freshness | Live |
| Signal Types | 27 |
| Total Observations | 30 |
Full dossier details are available via our API.