I’ve just recently re-coded my main site and blog to take Heading Tags into account. I thought they were added okish to begin with but an article from WordPress guru Yoast de Valk made me have another look. I’d like to try paraphrase his article here and simplify it so it’s a bit easier to digest both for me and for you.
Basically, you can endear yourself to Google and the other search engines a little bit more if you write your markup/code semantically which basically means being tidy, adding code hints and most importantly perhaps, adding the correct Formatting and Heading tags to the content you want highlighted the most/least. The idea is to make the most important keywords on the page your H1 heading, the next most important H2, and so on so when the Google bot visits your page it can then see at a glance so to speak, the most important areas and hopefully index same.
There should be only one H1 tag on a page and this should be your Page Title, Blog Title, Business name, etc..Your H2’s might be the titles of the individual sections on the page or perhaps your Article titles if you have a Blog. H3’s would be Sub-headings, H4′ s might be sidebar headings, etc..etc..
It’s important to style your headings accordingly so people too (not just Google bots!) can easily scan through longer pages of text and pick out the important parts but also that the heading tags actually contain valuable keywords. There’s no point having headings if you don’t follow both rules. If you do it correctly your page will be nicely ‘outlined’ for both search engines and real people.
Here’s a couple of screenshots from my main site and blog to explain things better and show how I’ve personally set things up.