IPDebrief

51.222.168.39

IP Intelligence Dossier
Your IP: 216.73.216.123
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# IP Intelligence Briefing: 51.222.168.39/32

Classification: Moderate Risk

Date: Current

Analyst: IPDebrief Intelligence Team

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## Executive Summary

IP address 51.222.168.39 is a cloud infrastructure endpoint hosted by OVH within the Ahrefs Pte Ltd customer network. The IP presents a moderate risk profile (score: 40/100) with no active threat indicators. The IP resolves to the ahrefs.net domain and operates as a firewalled cloud compute instance with no publicly accessible services.

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## Ownership & Infrastructure

AttributeValue
**ASN**16276 (OVH)
**Organization**Dmytro, Ahrefs Pte Ltd
**CIDR Block**51.222.168.0/24
**Network Classification**CloudCompute / Hosting
**Infrastructure Type**Cloud (OVH)

The IP belongs to OVH's customer network OVH-CUST-281059697. No open ports or active services were detected on the target address.

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## Geolocation Analysis

AttributeValue
**Country**CA (Canada)
**Region**QC (Quebec)
**City**Singapore
**DNS Resolution**proxy-ca018-san39.ahrefs.net

Note: Geolocation validation flagged an anomalyβ€”the system indicates Canada (CA) as the primary country, but the city field shows Singapore. Route metrics (30ms RTT vs. expected 112ms+ for trans-Pacific distance) suggest geolocation data may be unreliable for this endpoint.

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## Threat Assessment

IndicatorStatus
**Risk Score**40 (Moderate)
**Abuse Confidence**Not available
**Tor Exit Node**No
**Known Attacker**No
**Spam Source**No
**Blacklist Count**0
**DNSBL Listed**1 of 8 lists

No active threat feeds or known campaigns were associated with this IP. The single DNSBL listing indicates minor reputation concerns but does not constitute a known malicious indicator.

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## Neighborhood Analysis (51.222.168.0/24)

MetricValue
**Subnet Abuse Density**0.6836 (High)
**Active Siblings**219 of 256
**Threat Siblings**175
**Risk Distribution**99 medium, 1 high, 0 low

The /24 subnet exhibits elevated abuse density (68.36%) with 175 of 256 total IPs classified as threat siblings. While the specific IP 51.222.168.39 shows moderate risk, the subnet context suggests coordinated infrastructure usage within the OVH cloud environment.

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## Historical Observations

22 signal observations recorded. Key temporal findings:

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## Recommended Actions

Defensive Posture: Monitor but allow traffic.

Firewall Rules:

Investigative Notes:

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Conclusion: This IP represents legitimate cloud infrastructure within the Ahrefs ecosystem. While the subnet shows elevated abuse density, the specific IP has no active malicious indicators. Treat as moderate-risk infrastructure requiring monitoring rather than immediate blocking.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.

🌍 Geolocation

CountryπŸ‡¨πŸ‡¦ Canada
RegionQC
CitySingapore
Timezoneβ€”
Latitude45.51
Longitude-73.59

🏒 Ownership & Registration

OrganizationDmytro, Ahrefs Pte Ltd
ASNAS16276
Network NameOVH-CUST-281059697
CIDR Block51.222.168.0/24
RIRARIN
CountrySingapore
Abuse Contactβ€”

🌐 DNS Intelligence

PTRproxy-ca018-san39.ahrefs.net
Forward ConfirmedNo β€” PTR hostname does not resolve back to this IP (weak signal)
Forward Hostnamesproxy-ca018-san39.ahrefs.net

πŸ” DNS Hygiene

Hygiene Score40% (Fair)
SPFNot configured
DMARCNot configured
FCrDNSNot verified
DNSSECValid
CAAPresent

☁️ Network Classification

InfrastructureInfrastructure / Datacenter
Service PurposeFirewalled / No Services
Network TierHosting β€” Infrastructure provider without advanced routing
CloudHosting

πŸ”Œ Services & Open Ports

PortServiceProtocolBanner
No open ports detected
Closed Ports22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned)
Serverβ€”
HTTP Titleβ€”

πŸ” TLS Certificate

πŸ”’
No certificate
Issued by β€”
N/A
SANsNone
Valid Fromβ€”
Valid Untilβ€”

🎯 Confidence Breakdown

Per-dimension confidence scores based on source diversity and data freshness

DimensionScoreSourcesObservations
threat
31%
24
routing
13%
11
services
15%
22
ownership
19%
22
reputation
31%
13
geolocation
33%
23
Overall24%1015
Coverage: 6/6 dimensions Β· Data sufficiency: sufficient
Data CoherenceMostly Consistent (80%) β€” 1 contradiction(s)
AttributionLow (35%)
OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid
⚠ Claimed geolocation contradicts RTT physics measurement

πŸ“… Observation Timeline πŸ”„ Live

First Seen2026-05-13 12:13:34 UTC
Last Seen2026-06-27 23:26:47 UTC
Profile Built2026-06-28 17:32:31 UTC
Data FreshnessLive
Signal Types21
Total Observations26
πŸ” 21 signal types Β· 26 observations collected
This report is generated from 21+ independent intelligence signals including ownership records, DNS analysis, BGP routing, TLS certificates, port scanning, threat feeds, behavioral fingerprinting, and more.
Full dossier details are available via our API.
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ℹ️ About This Report

All data shown is publicly available network metadata β€” IP addresses do not reliably identify individuals. Assessments are probabilistic and should not be used as sole basis for access control decisions. To report an issue or request data review, contact admin@ipdebrief.com.