The other day someone wrote a deadman switch app that sent notifications to two emails. You had to click a url to keep it alive every 30 days. I can't find the

The other day someone wrote a deadman switch app that sent notifications to two emails. You had to click a url to keep it alive every 30 days. I can't find the reference and a few searches didn't come up with anything, but, perhaps someone else might remember the link.