An MCP server for HTML and CSS validation, technical SEO and accessibility checks, JSON-LD syntax validation, broken-link checks, and responsive screenshots. It is part of the DigestSEO suite of…
Web Validator MCP by DigestSEO is an MCP project maintained in the akzar1el/mcp-web-validator repository. The maintainer describes its purpose as “An MCP server for HTML and CSS validation, technical SEO and accessibility checks, JSON-LD syntax validation, broken-link checks, and responsive screenshots. It is part of…”. Read the project documentation for the complete scope.
The documented npm package is mcp-web-validator. The configuration below comes from the maintainer’s example; adapt its paths and account values to your environment.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| html.local | Validate a local HTML or XHTML file. |
| html.url | Validate the markup returned by a public URL. |
| css.local | Validate a local CSS file. |
| seo.metadata | Audit titles, descriptions, canonical tags, robots noindex directives, headings, viewport metadata, image alt attributes, and Open Graph metadata. |
| links.broken | Check links extracted from supplied HTML. |
| schema.markup | Parse JSON-LD blocks and report JSON syntax errors. |
| report.validation | Combine HTML/XHTML, optional CSS, SEO, JSON-LD, and bounded link checks in a Markdown report. |
| screenshot.capture | Capture desktop, tablet, mobile, or custom viewport screenshots. |
{
"mcpServers": {
"mcp-web-validator": {
"command": "npx",
"args": [
"-y",
"mcp-web-validator"
]
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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# AccesibilityHub MCP Server for orchestrating web accessibility tools (axe-core, Pa11y, Lighthouse). Analyze web pages, check color contrast, get