Checking for your site in the Yahoo! Search index
This article explains how to see if your webpage or website has been indexed for Yahoo! Search.
You can search by entering an identifiable phrase that matches the title or description of the webpage you are looking for into the Yahoo! Search box. For example, if the page is titled "My Dog Sophie," use that phrase in quotations for your search. If there are too many search results, try using a longer, more unique phrase from the text on the page, for example, "My Dog Sophie + Sophie the wonder dog." The words that match your search terms are highlighted in your results.
Because the database might not recognize multiple syntax formats for the same URL, searching by the website URL may not tell you whether the site is in our search index. For example, you might search for "http://123foo.com", while the search crawlers may have indexed your page as "http://www.123foo.com."
To search for your site by its domain, search with "site:" preceding the domain (e.g., if you site's domain name is "123foo.com" search "site:123foo.com").
You can also do a URL restricted search using the format "url:". This instructs Yahoo! Search to find a specific document in our index, (e.g., "url:http://edit.autos.yahoo.com/repair/tree/0.html")
You can learn more about advanced search techniques.
Note: If your search topic or webpage includes adult content, it might not be included in the results unless you have elected to turn off the SafeSearch feature on Yahoo! Search.