IP Intelligence Briefing: 51.222.95.81
Date: 2026-05-31
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**1. Core Profile**
- Risk Score: 25 (Low Risk)
- Ownership:
- ASN: 16276 (OVH)
- Organization: Dmytro, Ahrefs Pte Ltd
- Network: OVH-CUST-281059689
- Geolocation:
- Country: Canada (CA)
- City: Singapore (geolocation inconsistency noted)
- Coordinates: Latitude 56.13, Longitude -106.35 (approx 3000km accuracy)
- Network Role:
- Cloud Infrastructure: Hosting provider (OVH)
- No Public Services: No open ports, no TLS/HTTP services detected
- DNS: Resolves to `proxy-ca010-san81.ahrefs.net` (ahrefs.net domain)
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**2. Threat Indicators**
- No Malicious Activity:
- No indicators of spam, attacks, or blacklisted status.
- No DNSBL listings (1/8 DNSBL checks).
- BGP & Routing:
- AS Path: 57866 16276 (OVH)
- Route Stability: Stable (no recent changes)
- RPKI: No invalid route announcements
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**3. Observation History**
- Consistent Low Risk:
- No significant changes in geolocation, DNS, or threat signals over the past 30 days.
- Last observed signal: Low-risk cloud infrastructure (May 31, 2026).
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**4. Network Relationships**
- Subnet: 51.222.95.81/24
- Key Links:
- OVH Network: Shared subnet with 247 IPs (123 active, 93 flagged as high-risk).
- Domain: Linked to `ahrefs.net` (legitimate domain, no email auth records).
- BGP Peers: AS16276 (OVH) and AS57866 (likely upstream provider).
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**5. Subnet Neighborhood**
- Abuse Density: 37.65% (moderate risk)
- Neighbor Risk:
- 55% low-risk IPs, 45% medium-risk IPs (no high-risk neighbors).
- Notable IPs:
- 51.222.95.0/24 (same subnet, risk score 25)
- 51.222.95.3 (risk score 50, medium risk).
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**6. Recommendations**
- Monitor Subnet: Elevated abuse density in the 51.222.95.0/24 subnet warrants closer scrutiny.
- Verify Geolocation: Discrepancy between Canada (country code CA) and Singapore (city) may indicate misconfiguration or spoofing.
- Secure Services: Ensure no unintended services (e.g., HTTP/HTTPS) are exposed on this cloud-hosted IP.
- Check DNS: Validate `proxy-ca010-san81.ahrefs.net` for potential misuse, though the domain appears legitimate.
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Tools Used: IPDebrief Profile, History, Relationships, Neighbors.
Threat Level: Low | Action Required: Monitor subnet for anomalies.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
๐ข Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059689 |
| CIDR Block | 51.222.95.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca010-san81.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca010-san81.ahrefs.net |
๐ DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
โ๏ธ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Tier 3 โ Basic operator with some routing infrastructure |
๐ 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 | โ |
| HTTP Title | โ |
๐ TLS Certificate
| SANs | None |
| Valid From | โ |
| Valid Until | โ |
๐ฏ 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 | 30% | 3 | 3 |
| reputation | 31% | 1 | 3 |
| geolocation | 39% | 2 | 3 |
| Overall | 29% | 12 | 18 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-15 08:44:34 UTC |
| Last Seen | 2026-06-28 02:12:16 UTC |
| Profile Built | 2026-06-28 20:17:17 UTC |
| Data Freshness | Live |
| Signal Types | 25 |
| Total Observations | 28 |
Full dossier details are available via our API.