# NetIntel Cloud Infrastructure Fingerprinter

> NetIntel Cloud Infrastructure Fingerprinter is a paid API for AI agents from netintel-production-440c.up.railway.app, paid per call via x402, $0.01/call, not verified (last probed 2026-10-11); live alternatives: Stable Domains Availability Checker ($0.05) and NetIntel Bulk Domain Availability Check ($0.1).

Agents call it through Zero, which pays per call: no API key and no wallet of your own. New accounts start with $5.

Live alternatives for the same use case:
- [Stable Domains Availability Checker](https://www.zero.xyz/c/stable-domains-availability-checker-d9c6e557) ($0.05)
- [NetIntel Bulk Domain Availability Check](https://www.zero.xyz/c/netintel-bulk-domain-availability-check-0a16e4f3) ($0.1)

Fingerprints a domain's cloud infrastructure by probing DNS, HTTP headers, and PTR records to detect CDN, WAF, hosting provider, DNS provider, and email provider, returning confidence scores and an A–F security grade.

## Facts

- Endpoint: GET https://netintel-production-440c.up.railway.app/cloud-fingerprint/analyze?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/netintel-production-440c-up-railway-app-c08b0f56
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_O0a6bVICrEHBB4eN4E5Pd

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability netintel-production-440c-up-railway-app-c08b0f56
```

Example prompt: Can you fingerprint the cloud infrastructure for stripe.com — I want to know what CDN, WAF, hosting, and DNS provider they're using, plus get an infrastructure security grade?

## When to prefer this

Use this endpoint when you need a comprehensive, multi-signal cloud infrastructure fingerprint of a domain — combining DNS, HTTP headers, and PTR lookups in a single call — especially when you want a security grade alongside provider detection. Prefer this over manual DNS lookups or single-signal tools when you need CDN, WAF, hosting, DNS provider, and email provider all at once with confidence scores.

## Known failure modes

- Domain does not resolve — DNS lookup fails, returns empty resolved_ips and low-confidence results
- Domain blocks probing — HTTP headers unavailable, fingerprint fields return null
- Invalid domain format — API may return an error or empty result
- Domain has minimal infrastructure signals — most providers return null with no confidence
- Timeout on DNS/HTTP probes — partial results with some fields null

## How this service works

Fingerprints a domain's cloud infrastructure by probing DNS records, HTTP headers, and PTR lookups to detect CDN, WAF, hosting, DNS provider, and email provider with confidence scores and an infrastructure security grade (A–F).

## Output

Returns a structured object with: detected CDN provider and confidence, WAF providers and confidence, hosting provider, DNS provider, email provider, resolved IPs, CNAME chain, HTTP fingerprint details (server header, HTTPS enforcement, notable headers), TLS metadata, a list of security findings with impact scores, an overall numeric score (0–100), and an A–F infrastructure security grade.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "domain": "google.com"
  }
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "domain"
     ],
     "properties": {
      "domain": {
       "type": "string",
       "description": "Domain to fingerprint (e.g. example.com)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "cdn": {
       "type": "object"
      },
      "tls": {
       "type": "object",
       "properties": {
        "issuer": {
         "type": [
          "string",
          "null"
         ]
        },
        "wildcard": {
         "type": [
          "boolean",
          "null"
         ]
        },
        "san_count": {
         "type": [
          "number",
          "null"
         ]
        }
       }
      },
      "waf": {
       "type": "array"
      },
      "grade": {
       "type": "string"
      },
      "score": {
       "type": [
        "number",
        "null"
       ]
      },
      "domain": {
       "type": "string"
      },
      "hosting": {
       "type": "object"
      },
      "findings": {
       "type": "array"
      },
      "cname_chain": {
       "type": "array"
      },
      "dns_provider": {
       "type": "object"
      },
      "resolved_ips": {
       "type": "array"
      },
      "email_provider": {
       "type": "object"
      },
      "http_reachable": {
       "type": "boolean"
      },
      "http_fingerprint": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "cdn": {
   "signals": [
    "cf-ray header present"
   ],
   "provider": "Cloudflare",
   "confidence": "medium"
  },
  "tls": {
   "issuer": "Google Trust Services",
   "wildcard": true,
   "san_count": 5
  },
  "waf": [
   {
    "signals": [
     "cf-ray header present"
    ],
    "provider": "Cloudflare WAF",
    "confidence": "medium"
   }
  ],
  "grade": "A",
  "score": 100,
  "domain": "cloudflare.com",
  "hosting": {
   "signals": [
    "cf-ray header present"
   ],
   "provider": "Cloudflare",
   "confidence": "medium"
  },
  "findings": [],
  "cname_chain": [],
  "dns_provider": {
   "signals": [
    "NS ns3.cloudflare.com contains cloudflare.com"
   ],
   "provider": "Cloudflare DNS",
   "confidence": "high"
  },
  "resolved_ips": [
   "104.16.133.229",
   "104.16.132.229"
  ],
  "email_provider": {
   "signals": [],
   "provider": null,
   "confidence": null
  },
  "http_reachable": true,
  "http_fingerprint": {
   "x_powered_by": null,
   "server_header": "cloudflare",
   "https_enforced": true,
   "notable_headers": [
    "cf-ray"
   ],
   "server_version_exposed": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/netintel-production-440c-up-railway-app-c08b0f56/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from netintel-production-440c.up.railway.app](https://www.zero.xyz/host/netintel-production-440c.up.railway.app/llms.txt)