54.39.210.253
IP Intelligence Briefing: 54.39.210.253
Date: 2026-06-16
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**1. Risk Profile**
- Risk Score: 40 (Moderate Risk)
- Ownership: Owned by OVH (AS16276) under Dmytro, Ahrefs Pte Ltd.
- Geolocation: Canada (QC, Beauharnois).
- Network Role: CloudCompute infrastructure (OVH-hosted).
- Threat Indicators: No active malicious campaigns, spam, or known attackers detected.
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**2. Subnet Analysis**
- Subnet: 54.39.210.0/24
- Abuse Density: 64.06% (high abuse classification).
- Neighbor Risk: 100 IPs in subnet; 98 medium-risk, 2 low-risk.
- Inherited Risk: 25% of subnet flagged for abuse.
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**3. Network Relationships**
- DNS Associations: Linked to `proxy-ca007-san253.ahrefs.net` (Ahrefs Pte Ltd).
- Subnet Connections: Part of OVH-CUST-281059686 network.
- Routing: BGP prefix `54.39.0.0/16`, stable route with no recent changes.
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**4. Historical Observations**
- Recent Activity (June 11–16, 2026):
- High abuse density in subnet observed.
- DNSSEC and CAA records validated; no DNSBL listings.
- Geolocation inferred with 3000km accuracy radius.
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**5. Recommended Actions**
- Firewall Rules:
- Block IP via:
- `iptables -A INPUT -s 54.39.210.253 -j DROP`
- `nft add rule inet filter input ip saddr 54.39.210.253 drop`
- Cloudflare/AWS WAF rules provided in response.
- Monitoring:
- Scrutinize subnet (54.39.210.0/24) for suspicious activity.
- Investigate DNS host `proxy-ca007-san253.ahrefs.net` for potential ties to malicious campaigns.
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Conclusion:
This IP is part of a high-risk subnet with elevated abuse density. While the IP itself shows no direct malicious indicators, its association with Ahrefs and OVH’s cloud infrastructure warrants cautious monitoring. Implement firewall restrictions and correlate with subnet-level threats for proactive defense.
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-281059686 |
| CIDR Block | 54.39.210.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca007-san253.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca007-san253.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 | 27% | 2 | 4 |
| routing | 8% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 22% | 1 | 3 |
| geolocation | 35% | 2 | 3 |
| Overall | 21% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-25 18:48:26 UTC |
| Last Seen | 2026-06-29 02:12:42 UTC |
| Profile Built | 2026-06-29 02:22:38 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 21 |
Full dossier details are available via our API.