# IP INTELLIGENCE BRIEFING: 54.39.210.15/32
Date: 2026-06-24
Classification: Moderate Risk
Risk Score: 50/100
## EXECUTIVE SUMMARY
IP address 54.39.210.15 is associated with OVH cloud infrastructure in Beauharnois, Quebec. The IP resolved to ahrefs.net with moderate risk indicators. Geolocation validation reveals significant anomalies suggesting potential hosting infrastructure misrepresentation.
## OWNERSHIP AND INFRASTRUCTURE
- Organization: Dmytro, Ahrefs Pte Ltd
- ASN: 16276 (OVH)
- Network: OVH-CUST-281059686 (54.39.210.0/24)
- Infrastructure Type: CloudCompute, Hosting
- DNS PTR: proxy-ca007-san15.ahrefs.net
## GEOLOCATION VALIDATION ANOMALY
Critical discrepancy detected:
- Claimed Location: Beauharnois, Quebec, Canada
- Observed RTT: 27ms
- Minimum Expected RTT: 112.6ms for 5629km distance
- Status: GEOLOCATION VIOLATION
This RTT violation indicates the IP is likely hosted in a different geographic location than claimed, common in hosting environments using CDN or proxy services.
## THREAT ASSESSMENT
- Abuse Confidence: None reported
- Known Campaigns: None
- Blacklist Status: 0 entries
- DNSBL Listings: 2 of 8 lists (control plane indicator)
- Open Ports: None detected
- Services: Firewalled / No Services exposed
## NEIGHBORHOOD CONTEXT
Subnet 54.39.210.0/24 exhibits elevated abuse activity:
- Abuse Density: 0.7969 (High)
- Classification: high_abuse
- Active Siblings: 177/256
- Threat Siblings: 204/256
- Risk Distribution: 100 medium-risk neighbors
This subnet shows concentrated abuse activity, warranting contextual scrutiny.
## OBSERVATION HISTORY
- Threat Observation Count: 1
- Persistence: Not persistently malicious
- Recent Activity: DNS resolution confirmed to ahrefs.net (2026-06-24)
- RTT Violation: First observed 2026-06-20
## RECOMMENDED ACTIONS
Firewall blocking recommended pending operational context:
iptables: `iptables -A INPUT -s 54.39.210.15 -j DROP`
nftables: `nft add rule inet filter input ip saddr 54.39.210.15 drop`
nginx: `deny 54.39.210.15;`
AWS WAF: Block 54.39.210.15/32
## ANALYST NOTES
- Monitor for activity patterns from related IPs in the 54.39.210.0/24 subnet
- The ahrefs.net association suggests legitimate use case (SEO analytics platform)
- Geolocation discrepancy requires verification if this IP targets your infrastructure
- Consider blocking at network boundary if no legitimate business relationship exists with Ahrefs services
---
*Report generated by IPDebrief Intelligence Platform*
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-281059686 |
| CIDR Block | 54.39.210.0/24 |
| RIR | ARIN |
| Country | Singapore |
| Abuse Contact | โ |
๐ DNS Intelligence
| PTR | proxy-ca007-san15.ahrefs.net |
| Forward Confirmed | No โ PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | proxy-ca007-san15.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 | 31% | 2 | 4 |
| routing | 13% | 1 | 1 |
| services | 15% | 2 | 2 |
| ownership | 19% | 2 | 2 |
| reputation | 31% | 1 | 3 |
| geolocation | 33% | 2 | 3 |
| Overall | 24% | 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 | 2026-05-20 11:47:03 UTC |
| Last Seen | 2026-06-28 12:03:41 UTC |
| Profile Built | 2026-06-29 06:07:55 UTC |
| Data Freshness | Live |
| Signal Types | 21 |
| Total Observations | 24 |
Full dossier details are available via our API.