51.195.215.100
IP Intelligence Briefing: 51.195.215.100/32
*Generated via IPDebrief Threat Intelligence Platform*
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**1. Core Profile**
- Risk Assessment: Moderate Risk (Risk Score: 50/100)
- Ownership:
- ASN: 16276
- Organization: Ahrefs Pte Ltd Dmytro (hosting provider)
- Geolocation: London, England, UK (inferred via multi-signal geolocation)
- Network Role:
- Provider: OVH (hosting infrastructure)
- Classification: Firewalled / No Services
- Subnet: 51.195.215.100/24 (mixed risk, abuse density: 49.41%)
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**2. Threat Indicators**
- Malicious Activity: No active threats detected (no indicators in threat feeds, DNSBL listings, or campaign associations).
- DNS Associations:
- Resolves to `proxy-uk009-san100.ahrefs.net` (Ahrefs infrastructure).
- No email authentication (SPF/DKIM) or TLS certificate data available.
- Network Behavior:
- No open ports or services detected.
- BGP route stability: Unstable (route changes in 30 days).
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**3. Temporal Observations**
- Historical Trends:
- Consistent geolocation in London, UK, since 2026.
- Subnet abuse density increased slightly (0.4941), with 126/255 sibling IPs flagged as high/medium risk.
- No persistent malicious activity observed.
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**4. Network Relationships**
- Key Associations:
- Linked to OVH network (ASN 16276).
- DNS ties to Ahrefs’ infrastructure (`proxy-uk009-san100.ahrefs.net`).
- No direct ties to Tor, CDN, or mobile networks.
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**5. Subnet Neighborhood**
- Subnet: 51.195.215.100/24
- Risk Distribution:
- 64 IPs flagged as medium risk (40–50 score).
- 36 IPs flagged as low risk (25–40 score).
- Abuse Density: 49.41% (mixed benign/malicious activity).
- Notable Neighbors:
- 51.195.215.0–51.195.215.4 show similar risk profiles.
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**6. Recommendations**
- Allowance: Permit traffic as part of legitimate hosting infrastructure (Ahrefs).
- Monitoring:
- Track subnet abuse density trends (increasing risk in 51.195.215.0/24).
- Validate DNS resolution to `proxy-uk009-san100.ahrefs.net` for potential spoofing.
- Mitigation:
- No immediate blocking required, but maintain visibility for anomalous behavior.
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*End of Briefing*
*Generated from IPDebrief v2026.06.08*
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-uk009-san100.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-uk009-san100.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 | 35% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 12% | 2 | 2 |
| ownership | 20% | 2 | 3 |
| reputation | 22% | 1 | 2 |
| geolocation | 33% | 2 | 3 |
| Overall | 23% | 10 | 14 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-18 09:25:02 UTC |
| Last Seen | 2026-06-28 07:12:07 UTC |
| Profile Built | 2026-06-29 01:17:28 UTC |
| Data Freshness | Live |
| Signal Types | 22 |
| Total Observations | 27 |
Full dossier details are available via our API.