# Crawlspur Parameter-URL Technical Indexability Check

> Crawlspur Parameter-URL Technical Indexability Check is a paid API for AI agents from crawlspur.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Checks whether a parameterized URL is technically indexable by search engines (e.g. not blocked by robots.txt, noindex directives, or other crawl barriers).

## Facts

- Endpoint: POST https://crawlspur.halowerk.com/v1/pruef/crawlspur/indexierbar/parameter-url
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crawlspur-parameter-url-technical-indexability-check-f7236729
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KQNI7CTyahGeUWdsD13y_

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 crawlspur-parameter-url-technical-indexability-check-f7236729 -d '<json body>'
```

Example prompt: Can you check whether this parameterized URL is technically indexable by search engines — https://example.com/products?color=red&size=M — and let me know if anything is blocking it from being crawled or indexed?

## When to prefer this

Use this endpoint when you specifically need to check technical indexability of a parameterized (query-string) URL, such as filtered, faceted, or paginated pages. It is distinct from checking the robots.txt file directly or checking a canonical page — this targets the specific signals (noindex, X-Robots, disallow rules) that affect parameter-bearing URLs. Prefer this when auditing e-commerce faceted navigation, paginated archives, or any URL with query parameters that may be selectively blocked.

## Known failure modes

- URL is not publicly reachable (returns connection error or timeout)
- Invalid or malformed URL input causes schema validation failure
- URL requires authentication and returns 401/403, preventing crawl
- CSS selector provided but matches no element on the page
- Rate limiting or server-side blocking prevents fetching the target URL

## How this service works

Prüft am Objekt parameter-url den Befund technische Indexierbarkeit.

## Output

Returns a technical indexability assessment for the given parameterized URL, including whether the URL is indexable and what specific barriers (if any) are present, such as robots.txt disallow rules, noindex meta tags, X-Robots-Tag headers, or other crawl-blocking signals.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "ziel": {
   "oneOf": [
    {
     "type": "string",
     "maxLength": 2048,
     "minLength": 1,
     "description": "Öffentliche HTTP(S)-Adresse; bei DNS-Befunden Domain oder öffentliche IP."
    },
    {
     "type": "object",
     "required": [
      "adresse"
     ],
     "properties": {
      "adresse": {
       "type": "string",
       "maxLength": 2048,
       "minLength": 1
      },
      "selektor": {
       "type": "string",
       "maxLength": 240,
       "minLength": 1,
       "description": "CSS-Selektor: genau ein Objekt, sonst erster Treffer des Objektfilters."
      },
      "vergleich": {
       "type": "string",
       "maxLength": 2048,
       "description": "Öffentliche Vergleichsadresse für Link-, Sitemap- oder Sprachbefunde."
      },
      "user_agent": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_-]{1,80}$"
      },
      "dkim_selektor": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_-]{1,63}$"
      }
     },
     "additionalProperties": false
    }
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crawlspur-parameter-url-technical-indexability-check-f7236729/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from crawlspur.halowerk.com](https://www.zero.xyz/host/crawlspur.halowerk.com/llms.txt)