If you scroll down at the bottom of the page in the lower right, there is an option to switch to English!

I live in the Netherlands and don't speak Dutch. Got redirected to /nl/4, which is almost all in English but has some of the headings in Dutch. Pretty sure it's not intentional..

Using IP-to-country resolution and ignoring the Accept-Language HTTP header seems to be a pretty common tactic these days.

by switching the language with the button hidden at the very bottom right of the page, which leads here: https://www.weebly.com/?lang=en

Really could be more prominent, at least on first page load.