# IP Intelligence Briefing: 142.44.233.35/32
## Executive Summary
Target IP 142.44.233.35 presents a moderate risk profile (risk score: 40) with significant contextual threat indicators. The IP resolves to a proxy hostname within the Ahrefs network (proxy-ca003-san35.ahrefs.net) but is hosted on OVH cloud infrastructure. The associated /24 subnet demonstrates high abuse density (69.14%), with 177 of 256 total sibling IPs flagged as threats. No active threat indicators were identified in real-time threat feeds.
## Network Intelligence
- IP Address: 142.44.233.35/32
- ASN: 16276 (OVH SAS)
- Organization: Dmytro, Ahrefs Pte Ltd
- Network Block: 142.44.233.0/24 (OVH-CUST-281059682)
- Infrastructure Type: CloudCompute/Hosting
- Reverse DNS: proxy-ca003-san35.ahrefs.net (ahrefs.net)
## Geolocation Analysis
- Reported Country: CA (Canada)
- Reported City: Singapore
- Coordinates: 56.13°N, -106.35°W
- Geolocation Confidence: Low (plausibility: false)
- Validation Issue: RTT measurement (26ms) inconsistent with reported distance (5,598km minimum possible RTT: 112ms)
- Note: Significant geolocation discrepancy indicates potential data quality issues or misconfigured infrastructure
## Threat Assessment
- Overall Risk Score: 40 (Moderate)
- Threat Indicators: None detected
- Known Attacker: False
- Spam Source: False
- Tor Exit Node: False
- Blacklist Count: 0
- DNSBL Status: Listed on 1 of 8 DNSBL lists
- Known Campaigns: None identified
## Subnet Neighborhood Analysis
The parent subnet (142.44.233.0/24) exhibits concerning abuse characteristics:
- Abuse Density: 69.14% (HIGH ABUSE classification)
- Total Sibling IPs: 256
- Active Sibling IPs: 198
- Threat Sibling IPs: 177
- Risk Distribution: 94 medium-risk, 6 low-risk, 0 high-risk neighbors
This high-density abuse environment suggests shared hosting infrastructure with multiple potential abuse vectors, requiring contextual risk assessment.
## Observed Behavior
- Network Role: Firewalled / No services open
- Open Ports: None detected
- HTTP/TLS Services: None active
- DNSSEC: Valid
- CAA Records: Present
- Ownership Stability: No ownership changes observed
- Threat Persistence: Not persistently malicious
## Historical Observation Summary
Analysis of 22 historical observations indicates:
- Recent subnet classification maintained as "high_abuse" (abuse density: 0.7578)
- No persistent malicious behavior detected
- Threat observation count: 1
- Average ownership days: Not established
## Recommended Actions
Firewall/Blocking Recommendations
Based on the moderate risk score and high-abuse neighborhood context, the following rules are recommended:
iptables:
```
iptables -A INPUT -s 142.44.233.35 -j DROP
```
nftables:
```
nft add rule inet filter input ip saddr 142.44.233.35 drop
```
nginx:
```
deny 142.44.233.35;
```
pfSense:
```
142.44.233.35/32
```
Cloudflare WAF:
```json
{
"description": "Block 142.44.233.35 โ IPDebrief risk score 40",
"action": "block",
"filter": {
"expression": "ip.src eq 142.44.233.35"
}
}
```
AWS WAF:
```json
{
"Addresses": ["142.44.233.35/32"],
"Description": "IPDebrief risk 40"
}
```
## Intelligence Assessment
The target IP is associated with Ahrefs, a legitimate SEO analytics company, but operates within a high-abuse OVH hosting environment. While no active threat indicators were detected, the subnet's abuse density (69.14%) and the presence of 177 threat-sibling IPs warrant caution. The IP resolves to a proxy hostname (proxy-ca003-san35.ahrefs.net), suggesting potential use in web crawling or SEO operations.
Risk Determination: Moderate - Block recommended due to high-abuse neighborhood context.
Additional Context: The significant geolocation discrepancy (Canada vs. Singapore) and RTT validation failure suggest either infrastructure misconfiguration or potential spoofing. Correlation with other signals is advised before implementing permanent blocking measures.
---
*Intelligence generated from IPDebrief platform data. Recommendations should be validated with additional threat intelligence sources before production deployment.*
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-281059682 |
| CIDR Block | 142.44.233.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca003-san35.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca003-san35.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 | 33% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 23% | 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 20:59:15 UTC |
| Last Seen | 2026-06-28 15:12:44 UTC |
| Profile Built | 2026-06-29 03:17:13 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 20 |
Full dossier details are available via our API.