export function parseDomain(url) {
	console.assert(typeof url === "string", url);

	let components = (new URL(url)).hostname.split(".");
	return components[components.length - 2] + "." + components[components.length - 1];
}



export function getHost(url) {
	if (!(url instanceof URL))
		url = new URL(url);
	return url.host;
}