If you create Google webmaster tools (https://www.google.com/webmasters/tools/... than you higher your page index in here. Also doing for regular content update, social media, user interaction and social bookmarking help you high speed index pages.

Use the following meta tag to increase the crawling our page index speed.





you can choose the visiting time according to your website .

New site then submit through Google,bing webmastertools fetch them from there by updating your sitemap.

Old site update continuously then you will get indexed very soon

Good content, regular update, social bookmarking and social media utilization at most and search engine submission

use google, bing wesubmaster tools and submit your rss or xml file to them

for more info http://itunerbd.blogspot.com

you must have to post refreshed and quality content of your website.