It’s not just important. It’s necessary.
Having a website is the bare minimum. You need it so that potential customers will take your startup seriously. You can’t expect people to take you seriously if they can’t find you on Google. Your website is the only way to get started with that.
Your website should also be a hub for all your content. That means blog posts, social media posts, videos, and more. They should all be in one place so that people don’t have to search for them all over the internet!