104.28.211.105
104.28.211.105 is an IPv4 address operated by Cloudflare, Inc. (AS13335), geolocated to Tokyo, United States. It belongs to datacenter or hosting infrastructure. As of July 23, 2026, IPDebrief rates it Low Risk (25/100); no anonymizing service was detected.
## IPDEBRIEF INTELLIGENCE BRIEFING
Target IP: 104.28.211.105/32
Classification: Legitimate Infrastructure – CDN (Cloudflare)
Risk Level: Low (Score: 25/100)
Report Date: Current
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OWNERSHIP & CLASSIFICATION
The IP address belongs to Cloudflare, Inc. (ASN 13335, CLOUDFLARENET). The network block 104.16.0.0/12 is registered with ARIN and operated as a Content Delivery Network (CDN). The IP is classified as infrastructure with no open services or exposed ports. Geolocation reports United States (Tokyo coordinates with low confidence, consistent with CDN anycast deployment).
THREAT ASSESSMENT
Current threat indicators show no malicious activity:
- Threat Indicators: None detected
- Blacklist Status: Listed on 1 of 8 DNSBLs (minimal impact)
- Known Attacker: No
- Tor Exit Node: No
- Spam Source: No
- Persistence: No persistent malicious behavior observed
The IP demonstrates stable ownership with zero changes and zero threat observation days. No known campaigns associated.
NETWORK CONTEXT
Neighborhood Analysis (104.28.211.0/24):
- Subnet classification: Clean
- Abuse density: 0
- Active siblings: 3 of 8 total
- Threat siblings: 0
Notable neighbor risk scores:
- 104.28.211.186: Risk 65, Authority 85
- 104.28.211.187: Risk 40, Authority 85
- 104.28.211.188: Risk 40, Authority 85
- 104.28.211.189: Risk 25, Authority 85
The elevated neighbor scores reflect normal CDN traffic patterns rather than coordinated malicious activity.
OBSERVATION HISTORY
Fourteen signal observations collected. Recent activity confirms consistent CDN classification with no threat emergence. Geo-validation shows ICMP blocking (typical for CDN infrastructure). No ownership or classification changes observed during the monitoring period.
RELATIONSHIPS
Relationship graph indicates four "Same Network" associations to CLOUDFLARENET. No external hostnames, organizations, or certificate associations detected.
RECOMMENDED ACTIONS
No immediate firewall or blocking actions recommended. The IP is classified as legitimate CDN infrastructure with low risk. Monitor as normal traffic. No iptables, nftables, or WAF rules required at this time.
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Analyst Notes: This IP represents standard Cloudflare CDN infrastructure. The low risk score and clean neighborhood classification support continued monitoring without escalation. Any traffic from this IP should be evaluated in context of the protected domain being served.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Cloudflare, Inc. |
| ASN | AS13335 |
| Network Name | CLOUDFLARENET |
| CIDR Block | 104.16.0.0/12 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 20% (Poor) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Valid |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS13335 |
| Network Prefix | 104.28.211.0/24 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 12% | 3 | 3 |
| Data Coherence | Consistent (100%) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-03 10:48:25 UTC |
| Last Seen | 2026-10-06 09:58:48 UTC |
| Profile Built | 2026-07-23 02:37:17 UTC |
| Data Freshness | Live |
| Signal Types | 15 |
| Total Observations | 15 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 104.28.211.105
Who owns the IP address 104.28.211.105?
104.28.211.105 is registered to Cloudflare, Inc.. The address falls within the 104.16.0.0/12 network block. Registration is held at ARIN.
Where is 104.28.211.105 located?
Geolocation data places 104.28.211.105 in Tokyo, Tokyo, United States. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 104.28.211.105 malicious or safe?
104.28.211.105 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
Is 104.28.211.105 a VPN, proxy, or data center address?
104.28.211.105 is classified as a content delivery network based on network ownership and behavioural analysis.