You need to work out on the structure of your site if it is correct then submit you site-map on the Google webmaster account. This will increase your caching rate of the site.
Create Sitemaps for Search Engines and Website navigation. Submit XML Sitemap through Webmaster Tool. Get some Quality back links from relevant sites. Some popular seo activities as press release and social bookmarking also help to get fast cache.
add xml sitemap in all pages of your site & Do more social bookmarking This both are very useful for fast crawling
quality backlinks from traffic sites 1st, ensure your sitemap is fine 2nd with those 2 you should be ok
Hello DP member. Thanks all member for creative tips or ideas. Here I have some more helpful guideline for fast caching. Here many member talking about social bookmarking, on-page, off-page optimization, content optimization, robots.txt, create sitemaps and image optimization. after do those all step. Simply improve your site service and continue the process of content optimization. And create a business profile in twitter and facbook.
For fast caching, you need quality content and relevant back links for your site and promote your website as much you can.