tags can improve the site optimization, but excessive use of tags with the same optimization excessive phenomenon, some owners will fully feel the label does not matter, just use the optimization label commonly used with H, TAG, ALT and so on, only in accordance with the demand to make better.
here is a simple example of H1 > tag
optimization site is not because Shanghai and Shanghai dragon and Phoenix believes that many webmaster have heard this word, if once the website optimization is likely to cause excessive search engine punishment. The real Shanghai dragon is not to meet the search engine, but the user experience based, supplemented by search engine. As long as the user then your website ranking never worse. Below the author to share four points, with the explanation of Shanghai dragon over optimization: