Short of downloading them there is no way to tell. We only require subs on foreign language vids, so any others are a bonus. Sometimes encoders include them, sometimes not. If you use VLC player, there is a plugin to automatically search for and add subs to your video. It is called VLsubs and can be found here:https://addons.videolan.org/browse/ord/latest/
The internet interprets censorship as damage and routes around it.
I may not believe in what you say, but I will fight to the death for your right to say it
Those who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety
It is the mark of an educated mind to be able to entertain a thought without accepting it