Frequently Asked Questions
What exactly is a server-side include (SSI)?
A server-side include is an instruction that tells a web server to build a page out of individual fragments when the page is requested, which means shared pieces can be updated in a single location rather than duplicated across every file.
What is this SSI test page verifying?
This page exists to verify whether the extension environment settings can be retrieved, and it displays those settings inside the embedded test frame located under the Environment heading.
Why does the environment output appear inside an iframe?
The environment settings are shown in an embedded frame so the values sent back by the server can be examined separately from the rest of the page layout.
How can I get back to the main site from this test page?
Click the “Site Home Page” link in the path bar at the top of the content area to return to the site home page.
Who creates this page?
As the page footer states, this page was generated by Plesk as part of the default domain configuration.
Server-side includes let a single source of truth feed many pages, which keeps navigation, footers, and other repeated blocks consistent. This test page focuses on confirming that the extension environment settings can be read and shown correctly, so the include behavior can be trusted before it is used more widely.