It’s so frustrating when my bank and other websites know that everytime at a certain time of the month, a lot of people will log in to their website. It’s normal and expected, but every time they end up having to do maintenence because of the high volume of people logging in to the site. I have stuff to do and now I have to wait 3–4 hours to do it :( So…forgive my ignorance because I don’t know much about how websites work.

Can you explain why this happens?