Subkey is a command-line utility for the Substrate framework used to create and manage keys, sign and verify signatures and interact with the keystore file. In this article, we will demonstrate how to build a subkey tool from the source code and then install it so that it is available anywhere in the system.
GTmetrix is a free online website performance testing tool. We can use this tool to identify and fix issues with our websites like page load speed and web page size. But, what if we have ads on our website from Google AdSense or Ezoic and we want to test the speed and performance of the website without the ads? In this post, we will show you how to do this without turning off the ads on the website itself.