Do I need a website to sell digital products?
Updated
You need a link, not a website
No. You need a link, not a website. Buyers need somewhere to read about the product and pay for it, and a hosted product page from any selling platform does both. Nobody has ever refused to buy because the page was not on your own domain.
A website becomes useful later, for search traffic and control. It is not a requirement to start.
What a website adds later
A place to publish things that bring in search traffic. Full control over design. A home that no platform can take away.
All of that is worth having eventually. None of it is worth it before your first sale.
The cost of building one too early
Weeks on design and hosting, and no feedback from buyers at the end of it.
The website is the most comfortable way to avoid asking anyone to pay. That is exactly why people build it first.
A reasonable order
Sell from a hosted page. Collect buyer emails. Once you have a repeatable product, add a site and point it at the same checkout.
Then you have a website with something to say on it.