Examine source code of CCA Tool — Domain Security & Name Variants

{
  "manifest_version": 3,
  "name": "CCA Tool — Domain Security & Name Variants",
  "version": "1.0.0",
  "description": "Check DNSSEC, SPF, DMARC, DKIM, HSTS and WHOIS for any domain. Name variant suggestions for form fields.",
  "permissions": [
    "activeTab",
    "contextMenus",
    "notifications",
    "storage"
  ],
  "host_permissions": [
    "https://ccatool.datasourceapi.com/*"
  ],
  "background": {
    "scripts": [
      "shared/utils.js",
      "service-worker.js"
    ]
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/content.js"
      ],
      "css": [
        "content/content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+Shift+C",
        "mac": "Alt+Shift+C"
      },
      "description": "Open CCA Tool popup"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "cca-tool@datasourceapi.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ],
        "disclosed": true,
        "purpose": "The extension sends domain names and IP addresses to ccatool.datasourceapi.com to retrieve security information. First names typed into form fields are sent to retrieve spelling variants. No personal data is stored on the server."
      }
    }
  }
}