dev-rules/lighthouserc.json at main · yellow-hammer/dev-rules · GitHub

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{
  "ci": {
    "collect": {
      "staticDistDir": "./build",
      "numberOfRuns": 3,
      "settings": {
        "emulatedFormFactor": "mobile",
        "throttling": {
          "rttMs": 150,
          "throughputKbps": 1638.4,
          "cpuSlowdownMultiplier": 4
        },
        "screenEmulation": {
          "mobile": true,
          "width": 412,
          "height": 915,
          "deviceScaleFactor": 2.625
        }
      }
    },
    "assert": {
      "assertions": {
        "categories:performance": ["warn", { "minScore": 0.8 }],
        "categories:accessibility": ["error", { "minScore": 0.9 }],
        "categories:best-practices": ["warn", { "minScore": 0.9 }],
        "categories:seo": ["warn", { "minScore": 0.9 }],

        "first-contentful-paint": ["warn", { "maxNumericValue": 2000 }],
        "largest-contentful-paint": ["warn", { "maxNumericValue": 2500 }],
        "total-blocking-time": ["warn", { "maxNumericValue": 300 }],
        "cumulative-layout-shift": ["warn", { "maxNumericValue": 0.1 }],
        "interactive": ["warn", { "maxNumericValue": 3500 }],
        "max-potential-fid": ["warn", { "maxNumericValue": 300 }],

        "maskable-icon": "off",
        "service-worker": "off",
        "offline-start-url": "off",
        "installable-manifest": "off",

        "viewport": "error",
        "font-display": "warn",
        "aria-required-children": "error",
        "aria-required-parent": "error",
        "aria-roles": "error",
        "document-title": "error",
        "html-has-lang": "error",
        "meta-description": "error",
        "meta-viewport": "error"
      }
    }
  }
}