54.39.6.176
IP Intelligence Briefing: 54.39.6.176
*Generated via IPDebrief tools (June 16, 2026)*
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**1. Core Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership:
- ASN: 16276 (OVH)
- Organization: Ahrefs Pte Ltd
- Subnet: 54.39.6.0/24
- Geolocation:
- Country: Canada (QC, Beauharnois)
- Coordinates: Unresolved
- Network Role:
- Cloud Compute (OVH infrastructure)
- Hosting: Yes
- No public services (open ports, TLS certs, or HTTP banners detected)
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**2. Threat Indicators**
- No direct malicious activity:
- No indicators in threat feeds, DNSBLs, or campaign correlations.
- No Tor, spam, or attacker associations.
- Subnet Context:
- Subnet 54.39.6.0/24 has high abuse density (0.5898) with 151 threat siblings.
- 68% of neighbors (100 total) are flagged as high/medium risk.
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**3. Relationships**
- DNS Associations:
- Linked to hostname `proxy-ca001-san176.ahrefs.net` (likely internal Ahrefs infrastructure).
- Network:
- Same subnet as OVH-CUST-281059680 (Ahrefs Pte Ltd).
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**4. Observation History**
- Recent Signals (June 11–16, 2026):
- Subnet abuse density increased to high_abuse.
- DNSSEC and CAA records validated.
- No persistent threats or ownership changes detected.
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**5. Recommendations**
- Monitor Subnet: The 54.39.6.0/24 subnet has a high abuse density, so monitor for lateral movement or compromised hosts.
- DNS Analysis: Investigate the `proxy-ca001-san176.ahrefs.net` hostname for internal Ahrefs traffic patterns.
- Network Segmentation: Consider isolating high-risk subnets to limit potential lateral spread.
- Threat Intelligence Feeds: Add to monitoring lists for OVH infrastructure due to high abuse density in the subnet.
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*End of Briefing*
*Generated by IPDebrief (© 2026 Jason Alberino)*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059680 |
| CIDR Block | 54.39.6.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca001-san176.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca001-san176.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 | |||
| 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 | 27% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 13% | 1 | 1 |
| ownership | 19% | 2 | 2 |
| reputation | 24% | 1 | 3 |
| geolocation | 19% | 2 | 2 |
| Overall | 19% | 9 | 12 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-28 18:35:17 UTC |
| Last Seen | 2026-06-29 05:53:12 UTC |
| Profile Built | 2026-06-29 06:03:21 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 21 |
Full dossier details are available via our API.