SPOF-O-Matic : Chrome extension for detecting and simulating frontend Single Points Of Failure. Detects likely third-party single points of failure as you browse and...
Yellow Lab Tools : Online test to help speeding up heavy web pages
Dimensions Browser Extension : Measure between the following elements: images, input-fields, buttons, videos, gifs, text, icons. You can measure everything you see in the browser.
Phantomas : PhantomJS-based web performance metrics collector and monitoring tool
Minimize round-trip times : An article on the best practices to apply in order to minimize HTTP round-trip times
The easiest way to measure your performance budget.
