Web Validator by DigestSEO MCP Server

by akzar1el Your server? Claim it

answering

Web Validator by DigestSEO is answering right now. Last checked 16 min ago. It exposes 8 tools. Last commit 31 Aug 2026.

Validate HTML/CSS, audit SEO and JSON-LD, check links, and capture responsive screenshots.

Uptime history 20 days of history

20 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

284 ms

Response time

average over 24h

Stars

last commit 31 Aug 2026

Nothing serious here today

Today is the operative word: we check Web Validator by DigestSEO every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 16 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp-web-validator --transport http https://web-validator-mcp.digestseo.com/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-web-validator": {
      "url": "https://web-validator-mcp.digestseo.com/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp-web-validator]
url = "https://web-validator-mcp.digestseo.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp-web-validator": {
      "url": "https://web-validator-mcp.digestseo.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp-web-validator": {
      "url": "https://web-validator-mcp.digestseo.com/mcp"
    }
  }
}

Available tools 8

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

audit

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 more sitemap pages remain.

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.

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.

validate

validate_css

Use this when raw CSS source is supplied. Parses it inside the Worker and returns syntax messages without contacting an external service.

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.

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.

broken

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.

generate

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.

Endpoints

URL	Transport	State	Latency	Checked
https://web-validator-mcp.digestseo.com/mcp	streamable-http	answering	303 ms	16 min ago

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Web Validator by DigestSEO — questions

Answers built from our own checks of this server.

What can Web Validator by DigestSEO do?

It exposes 8 tools, read directly from the server on our last check. Among them: audit_public_site, audit_public_webpage, audit_seo_metadata, check_broken_links, generate_validation_report, validate_css and 2 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is Web Validator by DigestSEO mostly used for?

Its tools cluster around audit and validate. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Web Validator by DigestSEO working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 284 ms. The bar chart above shows every period we have measured.

How do I connect Web Validator by DigestSEO?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Web Validator by DigestSEO need an API key?

No. Web Validator by DigestSEO completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Web Validator by DigestSEO?

It answers our handshake in 284 ms on average, which is faster than 52% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Web Validator by DigestSEO open source?

Yes — it is published under the MIT licence, written in TypeScript and 7 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.