Domain
The Domain module suite lets you share users, content, and configuration across a group of domains from a single installation and database.
Tags
multisite
Environment Indicator
Adds visual cues to indicate which environment you are currently viewing (Development, Staging, Production, etc.).
Asset Injector
Allows administrators to inject CSS and JavaScript into page output based on configurable rules without modifying themes.
Responsive Favicons
Adds responsive favicons generated by realfavicongenerator.net to Drupal sites, supporting multiple devices including iPhone, Android, iPad, tablets, and desktops.
Theme Switcher Rules
Allows automatic theme switching based on configurable rules using Drupal's Conditions system.