Broken Link Checker

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "version": "0.3.1",
    "name": "Broken Link Checker",
    "description": "A SEO tool to find broken (404) and redirected (301, 307, 308) links in all frames",
    "permissions": [
        "storage",
        "activeTab",
        "scripting",
        "notifications",
        "contextMenus"
    ],
    "host_permissions": [
        "<all_urls>"
    ],
    "icons": {
        "16": "data\/icons\/16.png",
        "32": "data\/icons\/32.png",
        "48": "data\/icons\/48.png",
        "64": "data\/icons\/64.png",
        "128": "data\/icons\/128.png",
        "256": "data\/icons\/256.png",
        "512": "data\/icons\/512.png"
    },
    "action": [],
    "background": {
        "service_worker": "worker.js"
    },
    "homepage_url": "https:\/\/webextension.org\/listing\/broken-link-checker.html",
    "web_accessible_resources": [
        {
            "resources": [
                "data\/popup\/index.html"
            ],
            "matches": [
                "*:\/\/*\/*"
            ]
        }
    ],
    "commands": {
        "_execute_action": {
            "description": "Press the action button"
        }
    }
}