18.239.176.88
IP 18.239.176.88 was identified as a web server associated with Amazon.com, Inc. (ASN 16509) and the AMAZON-CF network. Ownership records placed the infrastructure under Amazon.com, Inc. in Boston, US. Reverse DNS resolution returned server-18-239-176-88.bos50.r.cloudfront.net, and the server banner confirmed CloudFront usage. TLS certificates were issued by Amazon RSA 2048 M04 for *.cloudfront.net.
The IP presented a Low Risk profile (Score 25) with no active threat indicators, known campaigns, or associations with known attackers. Behavioral analysis recorded no honeypot hits, enumeration strikes, or WAF violations. While the subnet was classified as mostly clean, one DNSBL listing was observed.
A contradiction existed between claimed geolocation and RTT physics measurements, indicating a distance of 7,625km with a 12ms latency. The recommendation was to Monitor the IP due to signal contradictions and low confidence levels.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Amazon.com, Inc. |
| ASN | AS16509 |
| Network Name | AMAZON-CF |
| CIDR Block | 18.238.0.0/15 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | server-18-239-176-88.bos50.r.cloudfront.net |
| Forward Confirmed | Yes — FCrDNS verified |
| Forward Hostnames | server-18-239-176-88.bos50.r.cloudfront.net |
🔐 DNS Hygiene
| Hygiene Score | 80% (Excellent) |
| SPF | 2/2 domains |
| DMARC | 2/2 domains |
| FCrDNS | Verified |
| DNSSEC | Not signed |
| CAA | Present |
| Domains Checked | 2 domains |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Web Server |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| 80 | http | tcp | — |
| 443 | https | tcp | — |
| Closed Ports | 22, 25, 3389, 8080, 8443 (2 open / 7 scanned) | ||
| Server | CloudFront |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | *.cloudfront.netcloudfront.net |
| Valid From | 2026-08-25T00:00:00+00:00 |
| Valid Until | 2027-03-10T23:59:59+00:00 |
| TLS Protocol | Tls13 |
| Cipher Suite | TLS_AES_128_GCM_SHA256 |
| Signature Algorithm | sha256RSA |
| Validity Period | 197 days |
| Serial Number | 015E89F2D093DD92CD82A78C09A033C6 |
| Thumbprint | 5E9C8C0323F32C16F1D3F82DAE8E8E2D88E96056 |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 46% | 2 | 6 |
| routing | 13% | 1 | 1 |
| services | 33% | 2 | 4 |
| ownership | 27% | 2 | 3 |
| reputation | 28% | 1 | 3 |
| geolocation | 33% | 2 | 5 |
| Overall | 30% | 10 | 22 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Moderate (55%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-08-29 13:53:41 UTC |
| Last Seen | 2026-09-27 01:38:47 UTC |
| Profile Built | 2026-09-27 01:49:28 UTC |
| Data Freshness | Live |
| Signal Types | 24 |
| Total Observations | 41 |
Full dossier details are available via our API.