public function debug()
    {
        $query = $this->pdo->prepare(<<<SQL
SELECT *
FROM robotstxt__cache1
WHERE base = :base;
SQL
        );
        $query->bindValue('base', $this->base, \PDO::PARAM_STR);
        $query->execute();
        return $query->rowCount() > 0 ? $query->fetch(\PDO::FETCH_ASSOC) : [];
    }