Website audit: accessibility (WCAG), SEO, security headers and page speed

$0.01 per call · failed calls are never charged · no account or subscription: pay per call with a card key or USDC

Full website audit of one URL from a single load in a real browser: WCAG 2.1 A/AA accessibility violations with axe-core (rule, impact, elements, fix link), page speed (first byte, FCP, LCP, layout shift) and page weight by type, on-page SEO on the rendered page, and HTTP security headers with a grade. One overall score and the top issues. Use for a site or client report, before a launch, or to compare competitors.

Buy credits by card (from $1) Example result (JSON)

Inputs

NameTypeDescription
url (required)stringAbsolute http(s) URL of the page to audit

Request

Over HTTP, with a card key from /credits:

curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/audit/website?url=https%3A%2F%2Fwww.wikipedia.org%2F"

Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum or Solana over x402; Base or Tempo over MPP) and retries.

Example result

{
  "url": "https://www.wikipedia.org/",
  "finalUrl": "https://www.wikipedia.org/",
  "status": 200,
  "title": "Wikipedia",
  "score": 81,
  "grade": "B",
  "topIssues": [
    "accessibility: Elements must meet minimum color contrast ratio thresholds (3 elements)",
    "seo: no canonical link"
  ],
  "accessibility": {
    "standard": "WCAG 2.1 A and AA (axe-core automated rules)",
    "engine": "axe-core 4.10.3",
    "score": 89,
    "violations": 2,
    "affectedElements": 4,
    "bySeverity": {
      "critical": 0,
      "serious": 1,
      "moderate": 1,
      "minor": 0
    },
    "passedRules": 38,
    "needsReview": 3,
    "issues": [
      {
        "rule": "color-contrast",
        "impact": "serious",
        "help": "Elements must meet minimum color contrast ratio thresholds",
        "wcag": [
          "wcag2aa",
          "wcag143"
        ],
        "elements": 3,
        "examples": [
          ".footer-sidebar-text"
        ],
        "helpUrl": "https://dequeuniversity.com/rules/axe/4.10/color-contrast"
      }
    ]
  },
  "performance": {
    "score": 100,
    "timeToFirstByteMs": 95,
    "firstContentfulPaintMs": 310,
    "largestContentfulPaintMs": 420,
    "domContentLoadedMs": 280,
    "loadMs": 650,
    "cumulativeLayoutShift": 0,
    "requests": 14,
    "thirdPartyRequests": 0,
    "transferBytes": 151200,
    "byType": {
      "script": {
        "requests": 3,
        "bytes": 61000
      },
      "img": {
        "requests": 8,
        "bytes": 52000
      }
    },
    "domElements": 820,
    "issues": []
  },
  "seo": {
    "score": 73,
    "issues": [
      "no canonical link"
    ],
    "title": "Wikipedia",
    "titleLength": 9
  },
  "security": {
    "grade": "B",
    "score": 84,
    "missing": [
      "permissions-policy"
    ]
  },
  "auditedAt": "2026-11-07T12:00:00.000Z"
}

From an AI agent (MCP)

Add the MCP server to Claude, Cursor or any MCP client. This tool is audit_website, and the first 25 successful calls are free:

https://agent-data-tools.revmesh2074.workers.dev/mcp

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