SEO for non-HTML formats
February 20th, 2008 by Dan
While websites originally were, and still are, based largely on Hypertext Markup Language (HTML), which is a subclass of SGML, later technologies like Flash promised a powerful substitute for HTML. With HTML’s limitations in graphics and animations, Flash captured a market for detailed, high quality multimedia web content.
However, web publishers soon realized that Google responded poorly to Flash content. Google could not read Flash, and thus Flash websites appeared to Google to be totally blank or content-less pages. However, Google can now read Flash better, and is constantly improving upon Googlebot’s Flash handling technology. You may increasingly see all-Flash websites being indexed in Google with fairly accurate descriptions.
Another format often used for web content is the increasingly popular Portable Document Format by Adobe. The PDF is often used for proprietory or copyrighted content that is meant to be secure and edit-proof. PDF’s usually do well in search engines, and Google can usually read them very well, even offering to convert it to HTML on the fly. Duplicate content is usually not an issue with PDF, and such pages do not affect their HTML equivalents.
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