Most definitely! I wouldn't be using them if they weren't. Especially
because I use Linklocker every day, multiple times a day,  to either
save or retrieve something. I use it with Firefox and NVDA, and it works
well. I do have a Pinboard account, which is used to store my Twitter
favorites.

    pinboard is also very accessible. It's text and links. It could be
from the 90s.