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A good sematcic markup can improve visibity in web searches, then you page ranking no longer will become higher. In luck, you can earn some from your someone who are willing to pay the links on your site.
Visibility in search engine, shorter page (less any extra codes), easier to redesign and to maintain, accessible design(it can be acccept by the browsers as much as possible)
Visibility in search engine
- Make proper use of title, description meta, and img (alt attribute) elements, make sure they are unique.
shorter page (less any extra codes)
easier to redesign and to maintain
accessible design(it can be accept by the browsers as much as possible)
Additionally there are a list of specific server-side do's and do not's I follow, the list is long and specific to each project. Most of them involve security, safety, and organization for future development.