Most of the themes are coded using tableless CSS. One of the great benefits of coding using this method is that the code order can be arranged in the way we want.
This is particularly important when it comes to search engine optimization. Similar to the early words in the title tag, the content that is placed higher in the source code weight more in search engines than the content placed in the lower part. It is up to the designers to position different section into the theme code.
How to test?
Visit the url of the single post.
View the source code of the post.
Check the position of the source code for the post content base on the conditions stated below.
Repeat step 1-3 for the single page.
Criteria of passing the test
The source code for the post content should be placed right under <body> or under the source code of the header section.