I gone through a lot of hosting service providers and unfortunetly cannot find a single one that can be used without running nonfree programs, all of them require loading bulky obfuscated JavaScript apps.
I know of Codeberg Pages for static sites for example, but it is not suitable for any business or professional use.
I wouldn’t agree with this statement, there are plenty of businesses and professionals who are only on the interwebs to share their contact, biography or product knowledge base.
That being said, there are VPS providers running on libre software like vpsFree.cz which I use and can recommend. There should be more out there but I don’t keep track them, sorry.
There’s much thinner chance there exists a registrar caring about thee or thy software freedom though. People at sr.ht, LLC talks about setting up one but so far it’s just talks.
OpenNIC registrar (only be.libre seems to be functional) work without JS and thou can prolly ask them to license the site freely but non-ICANN domains are not practical for business or professional use due to the low adoption.