# IP Intelligence Briefing: 148.113.128.126/32
## Executive Summary
IP 148.113.128.126 is a moderate-risk address (Risk Score: 50) operating within OVH cloud infrastructure, allocated to Ahrefs Pte Ltd. The IP resolves to proxy infrastructure for ahrefs.net and demonstrates no active open ports or service banners.
## Ownership and Infrastructure
- ASN: 16276 (OVH)
- Organization: Dmytro, Ahrefs Pte Ltd
- CIDR Block: 148.113.128.0/24
- Infrastructure Type: Cloud Compute
- Service Classification: Firewalled / No Services
- Hosting Status: Enabled
## Geolocation Discrepancy
Critical intelligence indicator: Geovalidation reveals significant inconsistencies. The IP's claimed location (Singapore, CA) contradicts observed network telemetry:
- Claimed Distance: 6,082 km
- Observed RTT: 28ms average (30.8ms avg)
- Minimum Possible RTT: 121.6ms for the claimed distance
- Validation Status: Flagged as implausible (geo_plausible: false)
This RTT violation indicates the IP may be proxying or routing through an intermediate location.
## DNS Resolution
- PTR Hostname: proxy-ca014-san126.ahrefs.net
- Domain: ahrefs.net
- Forward Resolution: 1 hostname returned
- Forward Confirmed: No (reverse DNS not validated)
## Threat Assessment
- Abuse Confidence Score: Not assigned
- Blacklist Count: 0
- DNSBL Status: Listed on 2 of 8 total lists
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
- Campaign Correlation: None identified
## Neighborhood Analysis (148.113.128.0/24)
The /24 subnet exhibits elevated abuse characteristics:
- Abuse Density: 0.5898 (High Abuse classification)
- Total Siblings: 256
- Active Siblings: 204
- Threat Siblings: 151
- Risk Distribution: 0 High, 97 Medium, 3 Low
- Inherited Risk Score: 23
## Historical Observations
Eighteen observations recorded since initial discovery. Key temporal signals:
- Most Recent: 2026-06-17T06:50:09Z
- Threat Persistence: 0 days
- Ownership Changes: 0
- Signal Types: Listings (8 lists, 2 listed), Geo validation, Subnet analysis, Operator scoring
## Network Relationships
- Primary Network: OVH-CUST-281059693 (29 relationship entries)
- DNS Associations: proxy-ca014-san126.ahrefs.net (17 relationship entries)
## Recommended Actions
- Monitor for service activation or port opening
- Correlate RTT anomalies with potential proxying behavior
- Review DNSBL listings for context on reputation management
- Consider geo-blocking if legitimate traffic patterns don't match claimed origin
Classification: Moderate Risk - Cloud Infrastructure with Geographic Inconsistencies
---
*Data Source: IPDebrief Intelligence Platform*
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-281059693 |
| CIDR Block | 148.113.128.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca014-san126.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca014-san126.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 | Hosting โ Infrastructure provider without advanced routing |
๐ Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| 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 | 35% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 15% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 22% | 9 | 13 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-21 20:59:17 UTC |
| Last Seen | 2026-06-28 15:15:25 UTC |
| Profile Built | 2026-06-29 09:20:56 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 23 |
Full dossier details are available via our API.