Hi, Google caching for my site is very slow. Mostly it is 20 days for my main landing pages. I can't update these pages on regular basis infact there is no updations to do. How can I increase the caching for my site??
You can submit a XML sitemap to the major search engines, however, if you are concerned about Google primarily there is a setting in Google Webmaster Tools that allows you to increase your crawl rate
with submitting your XML sitemap in your Google webmaster tool account, do bookmarking work of your website and that will surely increase Google caching for your website...
If it was a blog and if you are updating on a regular basis , your site would get cached on a daily or hourly basis . I your case it will take some time as you are not updating on a regular basis . Anyways , you can try to submit a sitemap on your Google webmaster account .
Thanks for all the suggestions. But all said almost same thing of XML site-map, which I have done already. I have XML site-map for my site and already have submitted it to Google. also its not a blog. I will focus on Social-bookmarking. more suggestions will be helpful.