A great website design is visually interesting and engaging. But more than that, it's easy to navigate, and offers your customer plenty of (relevant) content.

The experience of each visitor to your website is unique, and the point of this largely depends on the environment you've built. A great website looks fantastic, and will appear attractive to users. As a visual medium, it's important that the design of your site is attractive and inviting - and (obviously) inoffensive and professional in its appearance.

Visitor satisfaction is a key metric when measuring the success of a website. If you're not asking for feedback in some form, then you're missing out. Website visitors should be given the opportunity to leave their contact details

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Ux, when it is fully responsive, validation both front and back end. Then security for SQL injection and cross site scripting