SEO On-Page Analyzer

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "SEO On-Page Analyzer",
  "description": "Chrome extension to review the on-page SEO attributes of a page.",
  "version": "1.0.4",
  "manifest_version": 3,
  "icons": {
    "16": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "SEO On-Page Analyzer",
    "default_icon": "icon.png"
  },
  "permissions": [
    "storage"
  ],
  "options_page": "options.html",
  "background": {
    "service_worker": "background.js"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "contentScript.js"
      ],
      "run_at": "document_start"
    }
  ]
}