Website took too long to respond (ERR_CONNECTION_TIMED_OUT)

When I try to visit my website, I get the following error in Chrome: “This site can’t be reached: took too long to respond.” (ERR_CONNECTION_TIMED_OUT) Also, Chrome says my connection is not secure. I think the two are related, since .app domains are required to use HTTPS. Before yesterday, I was able to view my site normally.

it just needed a little more time:

here is some good info on why that can sometimes happen: