# Does Site Use W3 Total Cache

> Does Site Use W3 Total Cache is a paid API for AI agents from site.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Detects whether a website uses W3 Total Cache by fingerprinting its homepage HTML and response headers, returning a yes/no answer with evidence.

## Facts

- Endpoint: GET https://site.intel.rallylive.ca/site/uses/w3-total-cache?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/does-site-use-w3-total-cache-fc6f9435
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TQA8moPZWNkFGBv9UY5dD

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-w3-total-cache-fc6f9435
```

Example prompt: Can you check whether example.com is using W3 Total Cache? I want to know if their caching setup uses that plugin before we pitch them our migration service.

## When to prefer this

Choose this endpoint when you need a fast, cheap ($0.01) single-technology check specifically for W3 Total Cache on one domain at a time. Prefer it for sales prospecting, competitor research, or pre-migration audits where you need a definitive yes/no with evidence rather than a full technology stack scan. Use sibling bulk endpoints if checking multiple domains at once.

## Known failure modes

- Site is unreachable or returns non-200 status, yielding no detection result
- Site uses JavaScript-rendered content that hides fingerprints from static HTML fetch
- False negative if W3 Total Cache is installed but its fingerprints are suppressed or customized
- Rate limiting or bot-blocking by the target domain may prevent page retrieval
- Invalid or malformed domain input causing request failure

## How this service works

Does a website use W3 Total Cache? Fetches the page (homepage for a bare domain) and matches W3 Total Cache's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (cache). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.

## Output

Returns a yes/no boolean indicating whether W3 Total Cache was detected on the target site's homepage, along with the specific evidence snippet (HTML or response header match) and the technology category ('cache').

## 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-w3-total-cache-fc6f9435/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)