public function icon() {
		$url = $this->_stub['website'];
		if (!$url) {
			return null;
		}

		$pieces = parse_url($url);
		$url = $pieces['host'];

		$icon = 'http://www.google.com/s2/favicons?domain=';
		$icon .= $url;

		$context = stream_context_create(
			['http' => ['header' => 'Connection: close']]);
		// E.g. http://www.google.com/s2/favicons?domain=xyz.com
		$file = file_get_contents($icon, false, $context);
		if ($file === false) {
			return null;
		}
		// TODO: transform into 16x16 png
		return $file;
	}