CHAPTER 9

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Site SEO

Web Crawlers

Search engines use automated software—known as web crawlers, robots , or spiders—to search the web and index pages which are then analyzed and ranked. For web crawlers to be able to read your content, it needs to be visible to them. Crawlers basically cannot see anything that is not a piece of text. Content embedded in formats such as Flash, JavaScript and images cannot be read, and therefore it is text lost for boosting your search rankings. This chapter contains some basic rules that will let you avoid this by enhancing your site’s visibility to web crawlers.

JavaScript

JavaScript is a client-side scripting language ...

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