In this thread:
@vshymanskyy provided a link to a certificate for Tasker on the Blynk Github site.
I’m not a Tasker user (I don’t even have an Android device), so I have no way of testing this. I’d also read and understand the whole thread before posting any more requests for help as the first post uses the old blynk.cloud host, which won’t work now - but this and other issues are explained within the thread.
Pete.