# IP INTELLIGENCE BRIEFING
IP Address: 142.44.228.139/32
Date: 2026-06-29
Classification: MODERATE RISK
## EXECUTIVE SUMMARY
The target IP 142.44.228.139 is a cloud-based infrastructure host operated by OVH Canada within the 142.44.228.0/24 subnet. The IP resolves to a DNS hostname associated with Ahrefs (proxy-ca016-san139.ahrefs.net) but presents a moderate risk profile (Score: 40) with notable geolocation inconsistencies. The subnet exhibits high abuse density (0.66), with 169 of 205 active sibling IPs flagged as threats.
## INFRASTRUCTURE PROFILE
- Organization: Dmytro, Ahrefs Pte Ltd
- ASN: 16276 (OVH)
- Network Block: 142.44.228.0/24
- Infrastructure Type: CloudCompute / Hosting
- Service Status: Firewalled / No Services Detected
- Geolocation Claimed: Canada, QC, Beauharnois (45.5075°N, -73.5887°W)
## RISK ASSESSMENT
Overall Risk Score: 40/100 (Moderate Risk)
| Metric | Value | Assessment |
|---|---|---|
| Provider Score | 0 | Minimal provider risk |
| Authority Score | 0 | Low authority |
| DNSBL Listed | 1/8 lists | Partially blacklisted |
| Abusive Siblings | 169/205 | 82.4% threat rate in subnet |
| RTT Validation | FAILED | Geolocation implausible |
## CRITICAL OBSERVATIONS
Geolocation Anomaly
Geolocation validation failed with significant RTT violation:
- Claimed distance: 5,598 km from probe origin
- Minimum possible RTT: 112ms
- Observed RTT: 29ms
- Implication: IP likely misreported or located in different region; distance discrepancy exceeds 5,500 km
Subnet Threat Context
The /24 subnet (142.44.228.0/24) shows elevated abuse patterns:
- Abuse Density: 0.66 (High)
- Threat Classification: high_abuse
- 169 threat siblings detected out of 205 active IPs
- Risk inheritance score: 26
DNS Infrastructure
- Forwarded hostname: proxy-ca016-san139.ahrefs.net
- Domain: ahrefs.net
- No forward confirmation (0.0.0.0)
- DNSSEC: Valid
- CAA Records: Present
## THREAT INDICATORS
- Tor Exit Node: No
- Known Attacker: No
- Spam Source: No
- Campaign Correlation: None detected
- Blacklist Count: 0 (primary lists)
## RECOMMENDED ACTIONS
Firewall Rules (Immediate)
```bash
# iptables
iptables -A INPUT -s 142.44.228.139 -j DROP
# nftables
nft add rule inet filter input ip saddr 142.44.228.139 drop
# nginx
deny 142.44.228.139;
```
WAF Configuration
- Cloudflare WAF: Block IP with expression `ip.src eq 142.44.228.139`
- AWS WAF: Add address 142.44.228.139/32 to rule set
## OBSERVATION HISTORY
Twenty signal observations recorded between June 16-29, 2026:
- June 29: DNS resolution for ahrefs.net (confidence: 0.80)
- June 21: Operator score 0.2174 (Minimal), network classification confirmed
- June 16: Geolocation probe with RTT validation failure
## ANALYST NOTES
1. Despite resolving to Ahrefs domain, the geolocation discrepancy (5,500+ km RTT violation) suggests potential spoofing or misconfiguration
2. High subnet abuse density warrants monitoring of related IPs in 142.44.228.0/24
3. No active services detected; IP appears to be a backend/proxy endpoint
4. Risk score of 40 indicates moderate concernβblock if receiving unwanted traffic from this IP
---
*Intel generated from IPDebrief analysis. Combine with additional threat signals before taking action.*
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
π’ Ownership & Registration
| Organization | Dmytro, Ahrefs Pte Ltd |
| ASN | AS16276 |
| Network Name | OVH-CUST-281059695 |
| CIDR Block | 142.44.228.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | β |
π DNS Intelligence
| PTR | proxy-ca016-san139.ahrefs.net |
| Forward Confirmed | No β PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca016-san139.ahrefs.net |
π DNS Hygiene
| Hygiene Score | 40% (Fair) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Present |
βοΈ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting β Infrastructure provider without advanced routing |
π Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | β |
| HTTP Title | β |
π TLS Certificate
| SANs | None |
| Valid From | β |
| Valid Until | β |
π― Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 35% | 2 | 3 |
| routing | 8% | 1 | 1 |
| services | 8% | 1 | 1 |
| ownership | 19% | 2 | 2 |
| reputation | 28% | 1 | 3 |
| geolocation | 27% | 2 | 3 |
| Overall | 21% | 9 | 13 |
| Data Coherence | Mostly Consistent (80%) β 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
π Observation Timeline π Live
| First Seen | 2026-05-26 06:50:06 UTC |
| Last Seen | 2026-06-29 02:41:02 UTC |
| Profile Built | 2026-06-29 02:43:09 UTC |
| Data Freshness | Live |
| Signal Types | 19 |
| Total Observations | 19 |
Full dossier details are available via our API.