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Crawlspur Image Self-Referencing Canonical Check
x402
Crawlspur Image Self-Referencing Canonical 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 an image object on a webpage has a self-referencing canonical URL (i.e. the canonical tag points back to the page itself).
Price / call$0.001
Success—
StatusUnknown
How this service works
Prüft am Objekt bild den Befund selbstreferenzierende kanonische Adresse.
Output
Returns a finding (Befund) indicating whether the image object's canonical URL is self-referencing — i.e. whether the canonical tag on the page points back to the same URL. Likely includes the detected canonical URL, a boolean or status result, and possibly diagnostic details about the canonical declaration.
Example use cases
Image gallery canonical SEO audit
“I need to verify that https://shop.example.com/product-images/sneaker-red.jpg has a self-referencing canonical tag set up correctly for SEO — can you check if the canonical on that image page points to itself?”
CMS image URL canonical validation
“We just migrated our CMS and I want to confirm that https://media.mysite.com/uploads/hero-banner.jpg still has a self-referencing canonical — please check if that image URL's canonical tag references itself.”
Specific image element canonical check via CSS selector
“On the page https://blog.example.com/post/summer-collection, check the image matched by the CSS selector 'article img.main-photo' and tell me whether its canonical URL is self-referencing.”
Technical details
Endpoint
POSThttps://crawlspur.halowerk.com/v1/pruef/crawlspur/canonical-selbst/bildWhen to prefer
Choose this endpoint when you specifically need to validate the self-referencing canonical signal on an image object or image URL for SEO auditing purposes. It is distinct from general canonical checks because it targets image objects specifically, making it ideal for auditing image-heavy pages, product galleries, or CDN-hosted image URLs where canonical tags need to loop back to themselves for proper indexing signals.
Side effects
- Target URL is not publicly accessible (returns non-200 status)
- No image found matching the provided CSS selector
- Canonical tag is absent from the page (no finding possible)
- Malformed URL provided exceeding 2048 characters
- DNS resolution failure for the target domain
- Timeout when fetching the target page
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| ziel | — |
Tags
x402
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