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Vextorium Page Image Auditor
x402
Vextorium Page Image Auditor is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-16).
Extracts all images from a webpage URL with metadata (alt text, dimensions, format, lazy loading) and flags missing alt text and non-modern formats for accessibility and SEO audits.
Price / call$0.003
Success—
StatusUnknown
How this service works
Images on a page with URL, alt text, declared size, lazy loading and format, counting images without alt text and flagging missing modern formats. For accessibility and SEO audits.
Output
Returns a JSON object with the total image count, number of images missing alt text, number missing declared dimensions, lazy-loaded image count, a format breakdown (PNG/SVG/WebP counts), a list of warning messages, the final resolved URL, and a detailed array of every image with its URL, alt text, width, height, format, lazy-load status, and missing-alt flag.
Example use cases
Accessibility compliance check for a client site
“Run an image accessibility audit on https://www.myshop.com — I need to see every image, which ones are missing alt text, and a count of how many accessibility issues there are so I can fix them before launch.”
SEO image format audit before optimization
“Scan all the images on https://blog.example.com and tell me how many are still PNG or JPEG versus WebP — I want to know which ones I should convert to modern formats for better SEO.”
Pre-launch QA for image lazy loading
“Check https://www.landingpage.io for image issues — I want to see whether any images are missing alt text or dimensions, and confirm which ones have lazy loading enabled.”
Technical details
Endpoint
POSThttps://api.vextorium.com/imagenes-pagina-pago?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a structured, machine-readable audit of all images on a specific webpage — particularly for accessibility compliance (WCAG alt text checks), SEO audits (modern format usage), or pre-launch QA. It is ideal when you need per-image metadata (URL, dimensions, format, lazy-load) rather than a general page health check.
Side effects
- Invalid or unreachable URL returns an error or empty result
- Pages with JavaScript-rendered images may miss dynamically loaded content
- Rate limiting or timeouts on slow-loading target pages
- Pages requiring authentication will not return protected image assets
- Redirect chains may resolve to an unexpected final URL
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| limite | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"lazy": 0,
"avisos": [
"9 imágenes sin texto alternativo (accesibilidad y SEO)."
],
"detalle": [
{
"alt": "",
"url": "https://wordpress.org/files/2026/06/WCUS-2026.png",
"alto": "1046",
"lazy": false,
"ancho": "1000",
"formato": "png",
"sin_alt": true
},
{
"alt": "",
"url": "https://wordpress.org/files/2024/04/brush.png",
"alto": "323",
"lazy": false,
"ancho": "1198",
"formato": "png",
"sin_alt": true
},
{
"alt": "",
"url": "https://wordpress.org/files/2025/12/wporg-69-design.png",
"alto": "460",
"lazy": false,
"ancho": "720",
"formato": "png",
"sin_alt": true
},
{
"alt": "",
"url": "https://wordpress.org/files/2025/12/wporg-69-build.png",
"alto": "460",
"lazy": false,
"ancho": "720",
"formato": "png",
"sin_alt": true
},
{
"alt": "",
"url": "https://wordpress.org/files/2025/12/wporg-69-publish.png",
"alto": "460",
"lazy": false,
"ancho": "720",
"formato": "png",
"sin_alt": true
}
],
"sin_alt": 9,
"formatos": {
"png": 16,
"svg": 1,
"webp": 1
},
"imagenes": 18,
"url_final": "https://wordpress.org/",
"sin_dimensiones": 0
}
}Tags
x402
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