Although Google's crawler is becoming more powerful, it has not been able to identify the contents of a video or flash animation as well as humans. Even for JS code, Googlebot only has preliminary analysis ability. In Google's words, that is, Googlebot has no eyes, it is temporarily unable to "see" The content of visual media. In addition to video, Flash animation is also one of the common content of the site. In order to allow the site to be better Googlebot analysis and crawl, Google today to webmasters and designers made a number of suggestions.
Let's take a look at how Googlebot deals with flash. Googlebot can read text and links in Flash files, but it does not recognize the structure and element affinity of Flash. In addition, because sometimes some text content will be made into the image as a part of Flash, but Googlebot currently do not have the relevant algorithm to read these images, so the text content (possibly important keywords) will be googlebot missed. In other words, even though Googlebot has successfully indexed your flash files to the search database, Google may not be able to recognize the text, content, and links for the above reasons. Worse still, other search engines ' reptiles have a worse ability to recognize flash than Googlebot. This shows that when you make some important content flash animation, these important content may not be identified by Google and other search engines, lost the opportunity to get the best rankings.
To avoid this, Google has made some practical suggestions to make it possible for the site to minimize the loss of its search engine friendliness when using flash:
1. The most important principle: always return the same content to Googlebot and website readers, otherwise your website may be judged as cheating.
2. Use flash only when necessary. Only use Flash as a multimedia performance tool, and the main content and navigation system of the website (page) is still mainly text. If you don't know what to do, YouTube is an excellent example. Not only does this make the site more user-friendly to Googlebot, your site content is also more accessible to more readers, including the visually impaired, because they usually use a screen reader. In addition, some readers who are slow to surf or are using a non-standard browser can also read your site because they may skip the flash content.
3. Using SIFR technology. The main content of the site and navigation system is still based on HTML, can not browse Flash readers can also read your site.
4. Provide non flash version of the website. For example, when you use a Flash animation as a welcome page in the homepage of the website, be sure to provide an HTML link outside of the Flash animation and point to a non flash version of the website, so that readers can easily read your website content even if they do not have the Flash plugin installed.
Of course, it is Google's fault, strictly speaking, that it is impossible to do the same thing with Flash as it is to crawl and analyze text, because technology is not yet home. But the current search technology can only to this extent, so we only in the design or update the site, as far as possible to adopt the recommendations of Google, so as to facilitate the site's inclusion and ranking. In fact, similar to the picture content, we insert pictures or Flash animation in the Web page, should be as concise as possible to their main content in writing, so even if googlebot ignore them, you can learn from your text description of their approximate content.