Currently, GlotDojo only supports phonetic subtitles for Chinese and Japanese. To be able to display phonetics for these two languages on top of Netflix and YouTube subtitles, you need to purchase the respective Premium Dictionary and download the dictionary to display the phonetics.

To buy Premium Chinese Dictionary: https://glotdojo.com/en/premium/chinese

To buy Premium Japanese Dictionary: https://glotdojo.com/en/premium/chinese