Freelancers, the self-employed, microbusiness operators, consultants: these groups increasingly sell their products and services through online platforms. The advantage: the platform largely takes care of your marketing and you're in business straight away. The disadvantage: if you're just one profile among many in a huge database, it's difficult to present your unique selling points.
A website that you can design exactly how you want it, free of the constraints of other economic players, has significant advantages. The same goes for an email address that conveys more about you than that you've signed up with one of the major online services.
Don't settle for being a bit player in the gig economy. Secure your own domain, like the big players.