Are the pages on your domain/ web-site freely crawlable by Google spider? If Google spider fails to crawl and index any web-site page, Google will be unaware of its existence. So, the web masters need to generate well optimized sitemap xml file to ensure that Google robot crawls and indexes the relevant pages of the domain.
Many veteran web masters advise the web designers and developers to use standard HTML rather than Flash, Ajax and ActiveX components for the sake of providing better user experience. Because, mobile platforms cannot properly handle Flash images and many browsers do not support Ajax and ActiveX components. Let me talk on some important details on this subject.