Prevent robots from crawling WooCommerce add-to-cart links, which can create a huge performance hit. https://closte.com/blog/prevent-robots-crawling-add-to-cart-links-on-woocommerce
User-agent: *
Disallow: /*add-to-cart=*
Disallow: /cart/
Disallow: /checkout/
Disallow: /my-account/