Most major companies have to build a high reliability, highly-scalable website operating globally. Lots of people know how to build these things [except of course for contractors that the US federal government hires], and most of them don't have "tech hubs" in any major city unless they're ... you know ... actual tech companies. Why do we consider a glorified hotel company like Airbnb a tech company? Just because YC invested in them?
I think going through this exercise will show it's more than "just a website"