most of hosting provider written on site provide a unlimited storage unlimited bandwidth you ask them how many concurrent user access my site - no ans then give answer was a I am not sure but it depend on your application in case of my web page size I know I give page size limit html and all of the detail in technical personal can count what are the page size and how many use can access website it depends on Network interface IOPS memory size most of hosting company use user GBPS network interface but in cloud VM assign network interface with 10mbps or 1mbps there are network limit incase of your hosting provider suggest to increase a resources only RAM, process in most of the plan many of soft restrictions I don't know about dedicated,vps server , I have used godaddy, hostgator shared hosting
i will write here as per my knowledge, and what i have done in practical, i like to make easy solution for all tech and non techky