there is also a simple remedy that could cover all other possible fake copy-sites which i find very useful and that is the browser's zoom option for those browsers that store the zoom state per domain not for the whole browser (eg. Chrome and Firefox).

for example i have zoomed reddit to 200% so when i visit https://www.reddit.com/r/Bitcoin/ i'll get an easy visual confirmation that i am on a website i have visited before. but if i go somewhere else like https://np.reddit.com/r/Bitcoin/ i'll immediately see a zoomed out (default) size which is a quick indication of different domain.