176.31.139.31
IP Intelligence Briefing: 176.31.139.31/32
*Generated via IPDebrief Analysis*
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**Core Profile**
- Risk Rating: Moderate (Risk Score: 50)
- Ownership: Owned by Ahrefs Pte Ltd Dmytro (ASN: 16276, OVH provider).
- Geolocation: France (Roubaix, Hauts-de-France region).
- Network Role: CloudCompute infrastructure (OVH-hosted, no residential/mobile attributes).
- Threat Indicators: No malicious activity detected (no blacklists, spam, or known attacker associations).
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**Observation History (Last 7 Days)**
- Signal Trends: Stable with no significant changes in geolocation, DNS, or threat indicators.
- Key Observations:
- DNS resolution linked to `ahrefs.net` (PTR: `proxy-fr004-san31.ahrefs.net`).
- BGP analysis shows route stability (AS Path: `57866 16276`, RPKI valid).
- Subnet abuse density: 75% (high_abuse classification).
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**Relationships & Network Context**
- Subnet: `176.31.139.31/24`
- Abuse Density: 75% (high risk).
- Neighbors: 31 IPs in subnet, with 24 classified as threats.
- High-Risk Neighbors: 24/31 IPs show medium+ risk scores (avg: 40–50).
- Network Relationships:
- Linked to OVH network `OVH_282114229` (same ASN, infrastructure).
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**Actionable Insights**
1. Monitor Subnet Activity: The high abuse density in the subnet (`176.31.139.0/24`) suggests potential for lateral movement or shared infrastructure risks.
2. Verify DNS Behavior: The IP resolves to `ahrefs.net`, a legitimate domain, but further scrutiny of DNSSEC/CAA records is advised.
3. Network Segmentation: Consider isolating this subnet due to its high abuse classification, especially given the presence of multiple high-risk neighbors.
4. Threat Correlation: While the IP itself is clean, its proximity to malicious activity warrants closer monitoring for anomalous traffic patterns.
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**Recommendations**
- Firewall Rules: Block high-risk neighbors in the `176.31.139.0/24` subnet to mitigate potential exposure.
- DNS Monitoring: Continuously track DNS resolution for `ahrefs.net` to ensure no unauthorized subdomains are being used.
- BGP Analysis: Validate BGP route stability and ensure no route hijacking incidents are occurring in the subnet.
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*End of Briefing*
*Generated by IPDebrief – Cybersecurity Threat Intelligence Platform*
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 | 176.31.0.0/16 |
| RIR | RIPE |
| Country | — |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | proxy-fr004-san31.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-fr004-san31.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 | 22% | 3 | 4 |
| services | 15% | 2 | 2 |
| ownership | 22% | 3 | 4 |
| reputation | 28% | 1 | 3 |
| geolocation | 21% | 2 | 2 |
| Overall | 23% | 13 | 19 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (65%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-07 23:03:56 UTC |
| Last Seen | 2026-06-27 02:18:12 UTC |
| Profile Built | 2026-06-27 20:23:46 UTC |
| Data Freshness | Live |
| Signal Types | 27 |
| Total Observations | 33 |
Full dossier details are available via our API.