Extract page metadata

Fetches one public HTML page and extracts title, description, canonical URL, robots directives, Open Graph, Twitter Card, advertised feeds, and parsed JSON-LD. Use this when an agent needs page identity or structured data rather than body text. Limit: 8 s, 5 redirects, 768 KiB, 50 JSON-LD blocks.

When to use it

Fetches one public HTML page and extracts title, description, canonical URL, robots directives, Open Graph, Twitter Card, advertised feeds, and parsed JSON-LD. Use this when an agent needs page identity or structured data rather than body text.

Input schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "minLength": 8,
      "maxLength": 2048,
      "description": "Absolute public HTTP or HTTPS URL without embedded credentials."
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "ok": {
      "const": true
    },
    "data": {
      "type": "object",
      "properties": {
        "requested_url": {
          "type": "string"
        },
        "final_url": {
          "type": "string"
        },
        "title": {
          "type": [
            "string",
            "null"
          ]
        },
        "description": {
          "type": [
            "string",
            "null"
          ]
        },
        "canonical_url": {
          "type": [
            "string",
            "null"
          ]
        },
        "language": {
          "type": [
            "string",
            "null"
          ]
        },
        "robots": {
          "type": [
            "string",
            "null"
          ]
        },
        "author": {
          "type": [
            "string",
            "null"
          ]
        },
        "open_graph": {
          "type": "object"
        },
        "twitter": {
          "type": "object"
        },
        "feeds": {
          "type": "array"
        },
        "json_ld": {
          "type": "array"
        },
        "invalid_json_ld_count": {
          "type": "integer"
        }
      },
      "required": [
        "requested_url",
        "final_url",
        "title",
        "description",
        "canonical_url",
        "open_graph",
        "twitter",
        "feeds",
        "json_ld",
        "invalid_json_ld_count"
      ]
    },
    "meta": {
      "type": "object",
      "properties": {
        "request_id": {
          "type": "string"
        },
        "duration_ms": {
          "type": "integer"
        },
        "limits": {
          "type": "object"
        }
      },
      "required": [
        "request_id",
        "duration_ms"
      ]
    }
  },
  "required": [
    "ok",
    "data",
    "meta"
  ],
  "additionalProperties": false
}

REST example

curl -X POST https://plainport.exportitnow.workers.dev/api/v1/extract-metadata \
  -H "content-type: application/json" \
  -d '{"url":"https://example.com"}'

Example result

{
  "ok": true,
  "data": {
    "title": "Example Domain",
    "canonical_url": null,
    "open_graph": {},
    "json_ld": []
  },
  "meta": {
    "request_id": "018f…",
    "duration_ms": 12
  }
}

Limit