148.113.128.159
Threat Intelligence Briefing: IP 148.113.128.159/32
Overview
- Risk Score: 50 (Moderate Risk)
- Ownership: Operated by OVH (AS16276) under Dmytro, Ahrefs Pte Ltd.
- Geolocation: Registered to Canada (CA) but resolves to Singapore (latitude 1.3521, longitude 103.8198). Geolocation consensus is plausible.
- Network Role: CloudCompute infrastructure (OVH), likely a firewalled server.
- Threat Indicators: No direct malicious indicators (no abuse confidence scores, no blacklists, no campaigns).
Key Observations
1. Historical Activity:
- Observed in Canada (CA) on 2026-06-11 with a geolocation radius of 3000 km.
- No persistent malicious behavior; threat observation count is 1.
- DNS resolution linked to proxy-ca014-san159.ahrefs.net (Ahrefs, a cybersecurity company).
2. Network Relationships:
- Linked to OVH-CUST-281059693 subnet (148.113.128.0/24).
- DNS associations with proxy-ca014-san159.ahrefs.net (10 entries).
- No direct ties to known attackers, Tor, or spam sources.
3. Subnet Analysis:
- 148.113.128.0/24 subnet contains 100 IPs.
- Abuse Density: 0% (no malicious IPs detected).
- Risk Distribution: 16 medium-risk IPs, 84 low-risk IPs.
Actionable Insights
- Monitor: Track geolocation discrepancies (Canada vs. Singapore) and DNS activity for proxy-ca014-san159.ahrefs.net.
- Verify: Confirm if the IP is part of legitimate Ahrefs infrastructure or a misconfigured cloud service.
- Network Segmentation: Ensure the subnet (148.113.128.0/24) is segmented to limit potential lateral movement.
- Threat Correlation: Cross-check with internal logs for traffic patterns or anomalies.
Recommendations
- No immediate blocking required, but maintain vigilance due to the IP’s cloud infrastructure role.
- Use IPDebrief actions to generate firewall rules if further risks emerge.
- Monitor for changes in the subnet’s abuse density or DNS associations.
Conclusion
This IP appears to be a legitimate cloud server operated by Ahrefs, with no direct malicious activity. However, its geolocation inconsistency and association with a cybersecurity company warrant further investigation to rule out misconfiguration or potential misuse.
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-281059693 |
| CIDR Block | 148.113.128.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | — |
🌐 DNS Intelligence
| PTR | proxy-ca014-san159.ahrefs.net |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca014-san159.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 | 8% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 19% | 2 | 2 |
| reputation | 22% | 1 | 3 |
| geolocation | 19% | 2 | 2 |
| Overall | 17% | 9 | 12 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-05-26 06:50:08 UTC |
| Last Seen | 2026-06-29 02:42:02 UTC |
| Profile Built | 2026-06-29 02:52:15 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 20 |
Full dossier details are available via our API.