104.28.157.53
104.28.157.53 is an IPv4 address operated by Cloudflare, Inc. (AS13335), geolocated to Narita, Japan. As of October 6, 2026, IPDebrief rates it Moderate Risk (40/100); no anonymizing service was detected.
## IP Intelligence Briefing: 104.28.157.53/32
Classification: Legitimate CDN Infrastructure | Risk Level: Low (Score: 15/100)
Executive Summary
The target IP 104.28.157.53 is part of Cloudflare's global CDN infrastructure (ASN 13335, CLOUDFLARENET). This IP presents a low-risk profile with standard CDN characteristics and no active threat indicators. The subnet demonstrates minimal abuse density (0.024), consistent with legitimate edge infrastructure operations.
Ownership and Network Classification
- Organization: Cloudflare, Inc.
- ASN: 13335 (CLOUDFLARENET)
- CIDR Block: 104.16.0.0/12
- Infrastructure Type: CDN (Content Delivery Network)
- Country: United States (US)
- Provider Score: 0 (Legitimate provider)
- Authority Score: 0
- DNSBL Status: 1 of 8 blacklist listings (classified as medium severity)
Threat Indicators
- Abuse Confidence Score: Not applicable (legitimate provider)
- Known Attacker Status: False
- Spam Source Status: False
- Tor Exit Node: False
- Known Campaigns: None detected
- Threat Persistence Days: 0
- Total Incidents: 0
Observed Signals (Last 14 Observations)
The IP has demonstrated stable behavior with consistent CDN classification across all observation periods. Recent signals confirm:
- CDN infrastructure type (confirmed)
- US geolocation with moderate confidence (0.35)
- Ownership stability with no changes recorded
- Subnet abuse density: 0.0952 (9.52%), classified as "mostly_clean"
Network Neighborhood Analysis (104.28.157.0/24)
The /24 subnet contains 41 sibling IPs with the following risk distribution:
- High Risk: 1 IP (score 80)
- Medium Risk: 8 IPs (scores 55-70)
- Low Risk: 12 IPs
- Clean: 20 IPs
Notable high-risk neighbors include 104.28.157.117 (risk: 80) and 104.28.157.118 (risk: 65). The target IP (104.28.157.53) with risk score 15 remains within the low-risk cohort.
Network Behavior
- Connection Type: CDN edge node
- Open Ports: None detected (firewalled/no services exposed)
- TLS Certificate: Not present
- HTTP Services: No active web services
- Anycast: No
- Route Stability: False (minor route changes in last 30 days)
Recommended Actions
No blocking or mitigation actions required. This IP represents legitimate Cloudflare CDN infrastructure. Standard monitoring practices apply. If the IP appears in traffic, verify it's legitimate CDN traffic before any blocking actions.
SOC Analyst Notes
This IP should not be treated as malicious. It is part of Cloudflare's edge network and may be legitimately routing traffic for protected websites. If traffic from this IP triggers alerts, investigate the specific traffic patterns rather than the IP itself. The single blacklist listing is likely a false positive or edge-case listing common for large CDN providers.
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 | 0% (None) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 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 | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS13335 |
| Network Prefix | 104.28.157.0/24 |
| Route mapping | Found |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 0% | 0 | 0 |
| routing | 0% | 0 | 0 |
| services | 0% | 0 | 0 |
| ownership | 25% | 1 | 2 |
| reputation | 0% | 0 | 0 |
| geolocation | 25% | 1 | 1 |
| Overall | 8% | 2 | 3 |
| Data Coherence | Mostly Consistent (85%) — 1 contradiction(s) |
| Attribution | Moderate (50%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-07-07 12:34:25 UTC |
| Last Seen | 2026-10-06 04:14:40 UTC |
| Profile Built | 2026-10-06 04:15:20 UTC |
| Data Freshness | Live |
| Signal Types | 17 |
| Total Observations | 19 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 104.28.157.53
Who owns the IP address 104.28.157.53?
104.28.157.53 is registered to Cloudflare, Inc.. The address falls within the 104.16.0.0/12 network block. Registration is held at ARIN.
Where is 104.28.157.53 located?
Geolocation data places 104.28.157.53 in Narita, Chiba, Japan. IP geolocation is approximate and indicates the network's registered or routed location rather than a precise physical address.
Is 104.28.157.53 malicious or safe?
104.28.157.53 currently carries a moderate risk assessment, meaning some indicators warrant caution, but the evidence is mixed. This assessment is generated from continuously collected signals and can change over time.