The page you are looking at is being generated dynamically by HerbIgniter.
If you would like to edit this page you'll find it located at:
system/application/views/welcome_message.php
The corresponding controller for this page is found at:
system/application/controllers/welcome.php
If you are exploring HerbIgniter for the very first time, you should start by reading the User Guide.
System check: Complete.
Page rendered in 0.1668 seconds, with all libraries and helpers loaded.