private function getDomainRegex($template)
    {
        if (preg_match('#https?://(.*)#', $template, $matches)) {
            $template = $matches[1];
        }
        $parameters = [];
        if (strpos($template, '<') !== false) {
            $template = preg_replace_callback(
                '/<(?:\w+):?([^>]+)?>/u',
                function ($matches) use (&$parameters) {
                    $key = '#' . count($parameters) . '#';
                    $parameters[$key] = isset($matches[1]) ? $matches[1] : '\w+';
                    return $key;
                },
                $template
            );
        }
        $template = preg_quote($template);
        $template = strtr($template, $parameters);
        return '/^' . $template . '$/u';
    }