Hi, welcome to the group and thanks for your interest in pydna.
Pydna can be run in a Jupyter notebook which can easily be shown as a web page.
Pydna could for sure also be run interactively through a service such as pythonanywhere.
Lastly pydna can also be used as part of the logics for some web script that carry out specific tasks.
I gathered some examples of pydna usage
here.
/bjorn