SELECT 
  * 
FROM 
  cscart_pinta_redirect_manager_redirects 
WHERE 
  `from_url` IN (
    '/why-buy-gift-certificates', '/why-buy-gift-certificates/', 
    'https://cs-cart.pixy.pro/why-buy-gift-certificates', 
    'https://cs-cart.pixy.pro/why-buy-gift-certificates/', 
    'https://cs-cart.pixy.pro/why-buy-gift-certificates?sl=uk', 
    'https://cs-cart.pixy.pro/why-buy-gift-certificates/?sl=uk'
  ) 
  AND `status` = 'A' 
order by 
  redirect_id desc

Query time 0.00016

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE Impossible WHERE noticed after reading const tables