I’m Dudley Storey, the author of Pro CSS3 Animation. This is my blog, where I talk about web design and development with , and . To receive more information, including news, updates, and tips, you should follow me on Twitter or add me on Google+.

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Making Your Web Pages Machine-Readable With Semantic Markup

seo / introduction

Estimated reading time: 1 minute, 8 seconds

When Google or another search engine does reach your page (using what is known as a “web spider” or “robot”) it will attempt to work out what the page is about. It will do so not only by using the heuristics previously discussed, but also by looking at several areas on the actual page:

  • The page title

  • The content of the headings used on the page (h1, h2, etc)

  • The content of the first paragraph, which may function as an introduction

  • Unique words used repeatedly throughout the document and their proximity to each other. The words “Africa” and “drums” used several times on a page in close proximity to each other make it more likely that the page is about African drums.

  • Ensure that descriptive alt values are placed on images

  • Microformatted address content, to try to determine where you are

  • General semantic markup: dfn, abbr, etc

  • Microdata, microformats, metatags and rel

Following the practices and protocols we have talked about so far should create a good, well-structured, semantic page. It’s important to remember that any page that is linked to (either within your site or via exterior inbound links) may be reached directly, by both the search engine and visitor – so crafting an introduction, or at least a comfortable context for the user to understand what is going on at the start of each page, is important.

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