I haven’t seen a straight-up “website” project since about 1996. Everything is an integration project with some combination of HTML veneer, front-end app, API, mobile app, or all of the above. The context diagram for these projects will fall into one of two patterns: the butterfly or the spider. A butterfly has a central system with a lot of feeds and connections fanning into it on one side and a large fan out on the other side, as shown in the figure that follows.
Some people would call this a monolith, but that has negative connotations. It might be a nicely factored system that just has a lot of responsibility.
The other ...