I had a webhook that was working for a few years and stopped working on April 12. I thought perhaps deleting and resubscribing might do something. I was able to delete the old subscription. If I try to subscribe using the same process that has worked in the past, I get a "not verifiable" response back. The strange thing is that my server logs don't show any traffic from the Strava server, so it seems like Strava can't contact my server.

Anyone have any ideas?