{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/observatory_trend",
  "title": "observatory_trend",
  "properties": {
    "cls": {
      "description": "Cumulative Layout Shift trend.",
      "items": {
        "nullable": true,
        "type": "number"
      },
      "type": "array"
    },
    "fcp": {
      "description": "First Contentful Paint trend.",
      "items": {
        "nullable": true,
        "type": "number"
      },
      "type": "array"
    },
    "lcp": {
      "description": "Largest Contentful Paint trend.",
      "items": {
        "nullable": true,
        "type": "number"
      },
      "type": "array"
    },
    "performanceScore": {
      "description": "The Lighthouse score trend.",
      "items": {
        "nullable": true,
        "type": "number"
      },
      "type": "array"
    },
    "si": {
      "description": "Speed Index trend.",
      "items": {
        "nullable": true,
        "type": "number"
      },
      "type": "array"
    },
    "tbt": {
      "description": "Total Blocking Time trend.",
      "items": {
        "nullable": true,
        "type": "number"
      },
      "type": "array"
    },
    "ttfb": {
      "description": "Time To First Byte trend.",
      "items": {
        "nullable": true,
        "type": "number"
      },
      "type": "array"
    },
    "tti": {
      "description": "Time To Interactive trend.",
      "items": {
        "nullable": true,
        "type": "number"
      },
      "type": "array"
    }
  },
  "type": "object"
}