Does clean HTML lead to better Search Engine Rankings?

I’ve seen numerous posts where people have claimed that good clean HTML leads to better SEO rankings. I’ve even talked about the lie that of the link between SEO and valid HTML.

I’ve yet to see any studies done which verify this claim and in fact I’ve even seen evidence to the opposite effect being true. I pointed out how in some competitive markets, the higher the ranking for the site the worse the validation recently in another post. This does not mean that poor code relates to higher rankings – just that valid HTML code doesn’t correlate to better rankings as some people would like to say, just like good clean code doesn’t mean the site will look better to visitors.

Matt Cutts recently did a short video on why Google’s own code doesn’t validate. (video opens new window – not allowed to embed)

Now does this mean that you should only have your web designers write invalid code – not, but it does mean you shouldn’t waste unnecessary time on it either.

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