my web site have more than 500 daily visit. many of them are google and my site have many keyword in google first search result page. any of those keyword not shown in yahoo search result. how to fix it.
Submit your site in Bing Webmaster and your site will be indexed on both Bing and Yahoo. Just do Google search for "Bing Webmaster" and create an account, and submit your site to index.
If you have your site indexed at google search result first page, I think you don't need to worry about yahoo or bing anymore
Yahoo and Bing search engine crawl speed very very low. Its not for your blog/web site. Check other popular sites new post crawl speed. Google is the only search engine that can crawl web pages quickly (I think they can crawl real time). Google index my blog post less than 3 minutes. For better crawl create unique and fresh contents and submit correct site map, create backlinks (social bookmarking) and get backlinks from higher authority sites which relate to your site.
Did you submit that to Yahoo/bing web master? If not, do that. Yahoo webmaster is slow to crawl and you need to wait to come in the Yahoo search result.
At first You submit to yahoo and Bing webmaster. The yahoo takes time to crawl and you have to wait to get the result.
Yes Yahoo and Bing use a single database and after indexing your home page they will take their time in indexing the rest of your pages. You could created a sitemap and submit to Bing's webmaster tools as it will make it easier for them to crawl your pages.
As long as it's indexed in Google, it's still ok as many people still uses Google as their main search engine.
No need to worry, since Google is much better in indexing your pages. Lots of people also use Google as their search engine.
Have you submitted the domain name to be reviewed and ranked by search engines? If not; search engines will not know to list results for your site till they have time to crawl through your live pages. You can contact each search engine provider in regard to submitting your domain for review as most submissions are a manual process.