What are the SEO rules for HTML 5?
I am doing a re-design for a client whose site currently has very high and successful rankings across all search engines (Google, Yahoo!, Bing, AOL, etc.)
My client is very weary about change, but the problem is that his site is very old and outdated (table layout, and very basic, first-level HTML4).
Currently, to define the
content-type metadata, the site uses the older:
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
But I would like to change the entire layout of the code structure. Example; using the new HTML5-compliant
Additionally, I would also like to change the DOCTYPE, from a plain-ol' HTML4 doctype to HTML5's
And I have heard that engine crawlers and SEO-masters are very particular about "space-coding" and semantics. Logically, I do not see how his site is so high ranked with the messy and outdated code that is being used, and I want to know if updating the code structure would mess with his sites rankings?
(P.S. I came here to ask this question, but I'm originally from StackOverflow, and I didn't really think that this would be a fit question for SO, but if this is the wrong place too, please suggest a different one).
Any help would be much appreciated! :-)