This site uses ‘Essential Cookies – small text files that are placed on your machine to help the site provide a better user experience. The ICO pages on GDPR state,
There is an exemption if:
- the cookie is strictly necessary to provide an ‘information society service’ (eg a service over the internet) requested by the subscriber or user. Note that it must be essential to fulfil their request – cookies that are helpful or convenient but not essential, or that are only essential for your own purposes, will still require consent.
and its unlikely to need consent for:
- cookies used to remember the goods a user wishes to buy when they add goods to their online basket or proceed to the checkout on an internet shopping website;
- session cookies providing security that is essential to comply with data protection security requirements for an online service the user has requested – eg online banking services; or
- load-balancing cookies that ensure the content of your page loads quickly and effectively by distributing the workload across several computers.
You can read more about this here: https://ico.org.uk/for-organisations/guide-to-pecr/cookies-and-similar-technologies/