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Crawlspur Canonical Content-Type Checker
x402
Crawlspur Canonical Content-Type Checker 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 and validates the delivered content type of a canonical URL target for SEO technical auditing.
Price / call$0.001
Success—
StatusUnknown
How this service works
Prüft am Objekt canonical den Befund ausgelieferten Inhaltstyp.
Output
Returns a structured finding (Befund) describing the delivered content type of the inspected canonical object — typically including the MIME type returned by the canonical URL's HTTP response, any anomalies, and relevant status information for technical SEO evaluation.
Example use cases
Canonical content-type SEO audit
“I want to verify what content type is being served at the canonical URL https://shop.example.com/product/shoes — can you check if it's returning text/html as expected?”
Detecting non-HTML canonical targets
“Can you check the canonical on https://blog.example.com/article-123 and tell me if the content type is something unexpected like application/json or a redirect to a PDF?”
Selective canonical inspection with CSS selector
“Audit the canonical link found in the <head> element of https://news.example.com/story/456 — I need to know what content type that canonical address actually delivers.”
Technical details
Endpoint
POSThttps://crawlspur.halowerk.com/v1/pruef/crawlspur/inhaltstyp/canonicalWhen to prefer
Choose this endpoint when you specifically need to audit the HTTP content-type returned by a canonical URL as part of a technical SEO crawl — for example, to detect pages where the canonical points to a non-HTML resource, a redirect chain, or an unexpected MIME type. It is part of a suite of specialized SEO checks on crawlspur.halowerk.com and is best used in automated SEO auditing pipelines.
Side effects
- Target URL is unreachable or returns a network error
- URL is not publicly accessible (private/intranet)
- Input URL is malformed or exceeds 2048 characters
- CSS selector matches no element or returns ambiguous results
- Canonical tag not found on target page
- Payment authorization fails (x402 protocol error)
- Rate limiting or server-side blocking of the crawler user agent
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ziel | — |
Tags
x402
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