Google Cache is nothing but a snapshot or a copy of a page stored by Google as a back-up. Google usually takes a snapshot of each page it examines and caches or stores that version as a back-up. The cached version is what Google uses to judge if a page is a good match for our query.View Google Cache »
Yahoo Search Engine offers cached copies of web pages. Now it features Wayback Machine links on their cache pages.
Right-click the “Cached” link, then click “Open in a New Tab” or “Open in a New Window.” A new tab or window opens and displays the older version of the page as saved on the Yahoo cache servers. Review other cached versions from the Yahoo search results page as needed.View Yahoo Cache »
You get cached pages in Bing, the same way you do in Google. If it has a cache, the little drop-down arrow will appear so you can view it in the browser.
If your website is stored in the Bing cache, then it means that your website is getting indexed properly by the Bing search engine.View Bing Cache »