These days I am doing HPC software development, so not much web development. Over the last few years I used to work as a senior lecturer and then a junior professor at a university, where my group worked with web tech quite a bit.
We used PHP/Laravel for developing a scientific SaaS prototype [1] and Python/Django for teaching web application development [2]. For documentation (including teaching materials, blogging), we had a preference for static site generator (Jamstack) solutions: we used Sphinx and later switched to MkDocs [3, 4].