# Crawlspur X-Robots-Tag Checker for Pages

> Crawlspur X-Robots-Tag Checker for Pages 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 the X-Robots-Tag HTTP header value on a given page URL and returns the crawlability finding for that page object.

## Facts

- Endpoint: POST https://crawlspur.halowerk.com/v1/pruef/crawlspur/x-robots/seite
- 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-x-robots-tag-checker-for-pages-2ac9c804
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5iAscXalpARmR-hLELkkz

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-x-robots-tag-checker-for-pages-2ac9c804 -d '<json body>'
```

Example prompt: Can you check the X-Robots-Tag HTTP header value on https://example.com/my-product-page and tell me what crawling directive it's sending?

## When to prefer this

Use this endpoint when you need to inspect the X-Robots-Tag HTTP response header specifically on a page-level URL (as opposed to a robots.txt file, image, or pagination object). It is ideal for diagnosing unexpected de-indexing, auditing specific pages before launch, or verifying bot-specific crawl directives. Choose this over generic HTTP header tools when you need a structured SEO-focused finding rather than raw header output.

## Known failure modes

- URL is not publicly accessible (returns connection error or non-2xx HTTP status)
- Page does not return an X-Robots-Tag header (finding reports absent/none)
- URL exceeds 2048 character limit
- CSS selector matches no element or multiple elements (first match used)
- Invalid or unreachable target address
- Rate limiting or payment failure at $0.001 USDC per call

## How this service works

Prüft am Objekt seite den Befund Wert des X-Robots-Tags.

## Output

Returns the X-Robots-Tag header value found on the target page, along with a structured finding about whether and how the page's crawlability is affected by that directive (e.g. noindex, nofollow, none, or absent).

## 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-x-robots-tag-checker-for-pages-2ac9c804/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)