Web Validator by DigestSEO
Audit public webpages and supplied markup for HTML, CSS, SEO, JSON-LD, and link issues.
| Endpoint | https://web-validator-mcp.digestseo.com/mcp (streamable-http) |
|---|---|
| Registry version | 1.3.47 |
| Now | 8 tools · grade A (91) · pin ts_d97ee7bdcb2836f31d3a31319d518001 · protocol 2025-06-18 |
| First / last listed | 2026-10-28 04:49 UTC / 2026-10-28 04:49 UTC |
| Grade over time | 2026-10-28: A (91), 8 tools |
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Tools: validate_html validate_css audit_seo_metadata validate_schema_markup check_broken_links generate_validation_report audit_public_webpage audit_public_site
validate_html | Use this when raw HTML markup is supplied. Sends that markup to the Nu HTML Checker hosted at validator.nu and returns validation messages. For a live URL, use audit_public_webpage. params: html* |
validate_css | Use this when raw CSS source is supplied. Parses it inside the Worker and returns syntax messages without contacting an external service. params: css* |
audit_seo_metadata | Use this for a focused SEO/accessibility-signal check of supplied HTML. It does not fetch a live webpage; use audit_public_webpage for a URL. params: html* |
validate_schema_markup | Use this for a focused JSON-LD syntax check of supplied HTML. It parses JSON only and does not validate Schema.org vocabulary semantics. params: html* |
check_broken_links | Use this for a focused check of up to 20 public HTTP(S) links found in supplied HTML. It does not fetch base_url, follow redirects, or retain response bodies. params: html*, base_url, max_links |
generate_validation_report | Use this when HTML markup is already supplied. Combines Nu HTML validation with local CSS, SEO, accessibility-signal, and JSON-LD syntax checks. It does not fetch a webpage from base_url; use audit_public_webpage for a live URL. params: html*, css, check_links, base_url, max_links |
audit_public_webpage | Use this when the user provides one live public webpage URL. Fetches one bounded static HTML response, then runs HTML validation, SEO/accessibility-signal, and JSON-LD syntax checks. It checks links only when requested and does not crawl, execute JavaScript, authenticate, or fetch linked stylesheets. Use only URLs the user owns or is authorized to inspect. params: url*, check_links, max_links |
audit_public_site | Use this for a bounded, sitemap-first audit of a public website the user owns or is authorized to inspect. It fetches at most 8 same-origin HTML pages per call, respects robots.txt, and returns compact page summaries plus deduplicated findings. It does not recursively follow HTML links, authenticate, execute JavaScript, fetch assets, or run site-wide link checks. Use page_offset to continue when m params: site_url*, max_pages, page_offset |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.