public static function getMetas(\DOMDocument $html)
    {
        $metas = [];

        foreach ($html->getElementsByTagName('meta') as $meta) {
            $name = trim(strtolower($meta->getAttribute('property') ?: $meta->getAttribute('name')));
            $value = $meta->getAttribute('content') ?: $meta->getAttribute('value');

            $metas[] = [$name, $value, $meta];
        }

        return $metas;
    }