SEOs look at the source code of almost every page – I do even when I am not analyzing the page and just browsing. That’s quite natural, I’ve been looking for tools that can represent the ...

Factoring common JSP or HTML code out of multiple pages and into a single file improves maintainability (you need to make changes in only one location) and reusability.

Look for a menu option that has the word "Source" in it, such as "View Page Source." Select that option to view a window that displays the page's HTML source code.