# IP Intelligence Briefing: 142.44.233.219/32
## Executive Summary
IP address 142.44.233.219 presents a Moderate Risk profile (risk score 40) associated with cloud hosting infrastructure operated by OVH. The IP resolves to Ahrefs.net domain infrastructure and operates within a subnet exhibiting high abuse density characteristics.
## Infrastructure Profile
Ownership & Registration
- ASN: 16276 (OVH SAS)
- Organization: Dmytro, Ahrefs Pte Ltd
- Network Block: 142.44.233.0/24
- CIDR Designation: OVH-CUST-281059682
Network Classification
- Infrastructure Type: CloudCompute (OVH hosting)
- Cloud Platform: Yes
- Hosting Provider: Yes
- Proxy/Vpn/Tor: No
- CDN: No
Geolocation Indicators
- Reported Country: CA (Canada)
- Reported Region: QC (Quebec)
- Reported City: Singapore
- Geo Validation: Anomaly Detected โ RTT measurement violations indicate geographic inconsistency (26ms RTT vs 112ms minimum expected for Singapore location, 5598km distance)
## DNS & Service Analysis
Resolved Hostnames
- PTR Hostname: proxy-ca003-san219.ahrefs.net
- Forward Resolution: proxy-ca003-san219.ahrefs.net
- Domain: ahrefs.net
Service Status
- Open Ports: None detected
- TLS Certificate: None observed
- HTTP Service: No active HTTP title/banner
- Connection Type: Firewalled / No Services
Email Reputation
- SPF Record: Not configured
- DMARC Record: Not configured
- TXT Record Count: 0
## Threat Indicators
Threat Profile
- Abuse Confidence Score: Not applicable
- Known Attacker: No
- Spam Source: No
- Tor Exit Node: No
- Blacklist Count: 0
- Threat Feeds: None detected
Control Plane Signals
- DNSBL Listed: Yes (1 listing out of 8 total lists)
- Route Stability: Unstable (route changes detected within 30 days)
- Operator Score: 0.2174 (Minimal)
- DNSSEC Validation: Valid
- CAA Records: Present
## Neighborhood Analysis
Subnet Risk Assessment
- Subnet: 142.44.233.0/24
- Abuse Density: 0.8008 (High Abuse Classification)
- Inherited Risk Score: 32
- Total Siblings: 256
- Active Siblings: 210
- Threat Siblings: 205
Risk Distribution (Sample of 100 Neighbors)
- High Risk: 0
- Medium Risk: 96
- Low Risk: 4
## Historical Observations
Temporal Signal History (20 observations)
- Recent Classification: Cloud infrastructure (confidence 0.90)
- Geographic Consensus: Inconsistent signals across multiple sources
- Infrastructure Persistence: Stable cloud hosting classification
- Threat Observation Count: 1
- Persistently Malicious: No
Notable Timeline Events
- 2026-06-29: Cloud infrastructure classification confirmed
- 2026-06-21: Geographic signals from multiple sources (CA/Singapore inconsistencies)
- 2026-06-21: DNS association with ahrefs.net confirmed
- 2026-06-21: ASN 16276 (OVH) with threat signals detected in AlienVault OTX
## Relationship Graph
Entity Associations
- Network Affiliation: Multiple same-network entries (OVH-CUST-281059682)
- DNS Associations: 13+ entries linking to proxy-ca003-san219.ahrefs.net
- No certificate or campaign correlations detected
## Recommended Security Actions
Immediate Mitigation
The following firewall rules are recommended based on the IP's risk profile:
iptables
```bash
iptables -A INPUT -s 142.44.233.219 -j DROP
```
nftables
```bash
nft add rule inet filter input ip saddr 142.44.233.219 drop
```
nginx
```nginx
deny 142.44.233.219;
```
Cloudflare WAF
```json
{
"description": "Block 142.44.233.219 โ IPDebrief risk score 40",
"action": "block",
"filter": {
"expression": "ip.src eq 142.44.233.219"
}
}
```
AWS WAF
```json
{
"Addresses": ["142.44.233.219/32"],
"Description": "IPDebrief risk 40"
}
```
## Threat Assessment Narrative
IP 142.44.233.219 operates as cloud infrastructure within the OVH provider network, resolving to Ahrefs.net domain assets. The subnet exhibits elevated abuse density (0.8008) with 205 out of 210 active siblings flagged as threats, suggesting a shared infrastructure environment with heightened malicious activity. Geographic validation failures indicate potential misconfiguration or spoofing concerns.
The IP's moderate risk score (40) warrants monitoring but does not indicate active malicious campaigns. No known threat feeds, blacklists, or campaign associations were identified. However, the unstable routing configuration and DNSBL listing suggest infrastructure instability that may warrant additional scrutiny.
Recommended Classification: Moderate Risk โ Monitor with passive blocking measures. Correlate with other network signals before implementing aggressive blocking policies.
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-san219.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca003-san219.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 | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| 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 | 34% | 2 | 3 |
| routing | 13% | 1 | 1 |
| services | 19% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 32% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 25% | 10 | 14 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-31 23:33:19 UTC |
| Last Seen | 2026-06-29 08:58:25 UTC |
| Profile Built | 2026-06-29 15:01:31 UTC |
| Data Freshness | Live |
| Signal Types | 20 |
| Total Observations | 22 |
Full dossier details are available via our API.