In 2023, some basic features of an eCommerce website include:

1. A responsive and user-friendly design, that adapts to different devices and screen sizes.
2. A clear and easy-to-use navigation, making it simple for customers to find what they're looking for.
3. A search bar, which allows customers to quickly search for specific products.
4. Product categories, which help customers to easily browse different types of products.
5. A shopping cart, which allows customers to add items to their cart and proceed to checkout.
6. Secure payment options, including options for credit cards, debit cards, and alternative payment methods like PayPal, Apple Pay, and Google Wallet.
7. A customer account system, which allows customers to save their information and track their orders.
8. A customer service section, which provides contact information, FAQs and a return/exchange policy.
9. A mobile-optimized website, that is easy to use on smartphones and tablets.
10. A blog or news section, that keeps customers informed about new products, promotions, and company news.
11. A live chat or chatbot service, that allows customers to interact with support representatives in real-time.
12. A review and rating system, that allows customers to share feedback about products and services.
13. A wishlist feature, that allows customers to save items for later purchase.
14. A newsletter sign-up, which allows customers to subscribe to updates and promotions.
15. A referral program, which rewards customers for referring friends to the website.
16. A social media integration, that allows customers to share products or promotions on their social media accounts.
17. A SEO friendly website structure, that makes it easy for customers to find the website through search engines.
18. A shipping and handling calculation at the checkout, that calculates and shows the cost of shipping and handling.
19. A Multi-language and multi-currency support, that allows customers to browse the website in their preferred language and currency.
20. A GDPR compliance, that ensures the website follows the EU's data protection regulations.