# does-site-use-aspnet

> does-site-use-aspnet is a paid API for AI agents from site.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Detects whether a website uses ASP.NET by fingerprinting HTML and response headers, returning a yes/no answer with evidence snippet.

## Facts

- Endpoint: GET https://site.intel.rallylive.ca/site/uses/aspnet?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/does-site-use-aspnet-fbb302e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-oGrIL-MhkQ7yQC6Fu-Oq

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 does-site-use-aspnet-fbb302e6
```

Example prompt: Can you check if example.com is running ASP.NET? I need the yes/no answer and whatever evidence was found in the headers or HTML.

## When to prefer this

Use this endpoint when you need a fast, cheap ($0.01) single-technology check specifically for ASP.NET backend detection on a domain. Prefer it over full tech-stack scanners when you only care about ASP.NET and want to minimize cost and latency. Ideal for high-volume sales enrichment pipelines or pre-screening lists of domains for ASP.NET presence before deeper analysis.

## Known failure modes

- Domain does not resolve or site is unreachable — no result returned
- Site uses anti-bot measures blocking the fetch — may return false negative
- ASP.NET version is heavily obfuscated or fingerprints removed — false negative possible
- Invalid or malformed domain input — request error

## How this service works

Does a website use ASP.NET? Fetches the page (homepage for a bare domain) and matches ASP.NET's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (backend). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.

## Output

Returns a boolean yes/no indicating ASP.NET usage, an evidence snippet (e.g. matching header value or HTML fragment that triggered the fingerprint match), and the technology category label ('backend').

## 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",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/does-site-use-aspnet-fbb302e6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from site.intel.rallylive.ca](https://www.zero.xyz/host/site.intel.rallylive.ca/llms.txt)