Question

As per my knowledge when ever a web-page is loading, always header is loading first and then body(top to bottom approach). But it makes me confused when people ask they want to load header first and body last?

Here I’m not getting what they want actually. Is there some concept which loads some portion of page first and some portion of page last?

Please help me to understand this concept.
Thanks in advance.

Answer 1

First try

May be you are asking about AJAX

This technology let to

“… loads some portion of page first and some portion of page last?”

Second try

If your question is

“Is it possible to load particular portion of a web page to be load first or last to enhance the performance of a webpage?”

Put Scripts at the bottom by Yahoo

Yes, you can all scripts include at the bottom (quite before </body>). This trick let browser to render page faster (read performance improvement to end user), because browser in this case not wait to load of all scripts in your page.