# IP INTELLIGENCE BRIEFING
Target IP: 142.44.233.31/32
Classification: Moderate Risk (Score: 40)
Date: 2026-06-14
---
## EXECUTIVE SUMMARY
IP address 142.44.233.31 is a cloud compute endpoint operated by OVH under Ahrefs Pte Ltd. The IP exhibits moderate risk (40) with no active threat indicators, but resides within a high-abuse density subnet (61.33%). Geolocation data shows significant inconsistencies, suggesting unreliable location reporting. No active services or open ports detected.
---
## OWNERSHIP & INFRASTRUCTURE
| Attribute | Value |
|---|---|
| **ASN** | 16276 (OVH) |
| **Organization** | Dmytro, Ahrefs Pte Ltd |
| **CIDR Block** | 142.44.233.0/24 |
| **Infrastructure Type** | Cloud Compute |
| **PTR Hostname** | proxy-ca003-san31.ahrefs.net |
| **Associated Domain** | ahrefs.net |
---
## RISK ASSESSMENT
Current Risk Score: 40 (Moderate Risk)
Threat Indicators:
- Blacklist Count: 0
- DNSBL Listed: 1 of 8 lists
- Known Attacker: No
- Tor Exit Node: No
- Spam Source: No
- Active Campaigns: None
Control Plane Analysis:
- Origin ASN: 16276
- BGP Prefix: 142.44.128.0/17
- Route Stability: Unstable (false)
- DNSSEC Valid: Yes
- Operator Score: 0.2174 (Minimal)
---
## GEOLOCATION ANALYSIS
Reported Location: Canada (QC) / Singapore
Assessment: INVALID
Evidence:
- GeoPlausible: FALSE
- Distance Violation: RTT 27ms vs. minimum possible 112ms for 5,598km distance
- Minimum Possible RTT: 112ms (for reported 5,598km distance)
- Probe Count: 5
Conclusion: Geolocation data is unreliable. The IP does not match reported geographic coordinates, indicating false or inaccurate location reporting.
---
## NEIGHBORHOOD ANALYSIS
Subnet: 142.44.233.0/24
Subnet Classification: HIGH ABUSE
| Metric | Value |
|---|---|
| Abuse Density | 61.33% |
| Total Siblings | 256 |
| Active Siblings | 196 |
| Threat Siblings | 157 |
| Inherited Risk | 24 |
Risk Distribution: 94 Medium, 6 Low, 0 High
Sample Neighbor Scores:
- 142.44.233.0: Risk 40 (Authority 50)
- 142.44.233.1: Risk 30 (Authority 50)
- 142.44.233.4: Risk 50 (Authority 50)
---
## NETWORK SERVICES
| Service | Status |
|---|---|
| Open Ports | None |
| TLS Certificate | None |
| HTTP Title | None |
| Server Banner | None |
| Classification | Firewalled / No Services |
---
## OBSERVATION HISTORY
Total Observations: 21
Recent Activity:
- Subnet abuse density observed: 0.6133 (High Abuse)
- DNS resolution confirmed: ahrefs.net with CAA records
- Geolocation signals: Multiple conflicting reports
- Operator score maintained: 0.2174
Temporal Analysis:
- Ownership Changes: 0
- Threat Persistence: 0 days
- Is Persistently Malicious: No
---
## RELATIONSHIPS
Network Associations: Multiple relationships to OVH-CUST-281059682 subnet (46+ relationships recorded)
---
## RECOMMENDED ACTIONS
Risk-Based Recommendation: MONITOR / CONSIDER BLOCK
Firewall Rules:
```bash
# iptables
iptables -A INPUT -s 142.44.233.31 -j DROP
# nftables
nft add rule inet filter input ip saddr 142.44.233.31 drop
# nginx
deny 142.44.233.31;
# pfSense
142.44.233.31/32
# Cloudflare WAF
Block 142.44.233.31 โ IPDebrief risk score 40
# AWS WAF
Addresses: ["142.44.233.31/32"]
Description: IPDebrief risk 40
```
---
## ANALYST NOTES
1. Geolocation Invalid: The reported Canada/Singapore location contains a significant RTT distance violation. Do not rely on geolocation data for this IP.
2. Neighborhood Risk: The /24 subnet shows elevated abuse density (61.33%). Consider blocking or rate-limiting the entire subnet if traffic from this IP is not authorized.
3. No Active Services: IP shows no open ports or services. This could indicate a dormant endpoint, misconfigured host, or intentionally hidden infrastructure.
4. Ahrefs Association: PTR hostname and domain association suggest this may be legitimate Ahrefs infrastructure, but the high-abuse neighborhood warrants scrutiny.
5. Action Recommendation: Given moderate risk score and high-abuse neighborhood context, implement blocking rules with awareness of potential legitimate use. Monitor for any activity from this IP.
---
Report Generated: 2026-06-14
Data Sources: IPDebrief Intelligence Platform
Classification: SOC Intelligence Report
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-san31.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca003-san31.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 | 26% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 12% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 31% | 2 | 3 |
| Overall | 21% | 10 | 15 |
| Data Coherence | Mostly Consistent (80%) โ 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
๐ Observation Timeline ๐ Live
| First Seen | 2026-05-12 03:42:46 UTC |
| Last Seen | 2026-06-27 20:48:05 UTC |
| Profile Built | 2026-06-28 14:54:47 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 25 |
Full dossier details are available via our API.