Chrome extension for detecting and simulating frontend Single Points Of Failure. Detects likely third-party single points of failure as you browse and allows you to Simulate 3rd party resources being unavailable.
Also, here: https://chrome.google.com/webstore/detail/spof-o-matic/plikhggfbplemddobondkeogomgoodeg
A CLI tool for detecting frontend SPOF, mainly blocking scripts and CSS