google sensitive to my index page update not to inner page update.

i found google and other se pay more attention to my index page update(many article listed ), pay less attention to my article page update. if index page update(new article added etc...) google recache it soon, but I change inner page ,google not cache it so far.

does google know which page is index page ,which is article page?
maybe a page with many inner links is thought as index page by google ,then pay more attetion and more action to its update,right?

 

google gives importance to your site with the power of your backlink. if you site is new , it's normal for you . you must continue to build backlinks

 

but my index page (sub home page) has no backlink, so do inner page. my home page has backlinks.

 

Get more incoming deep links to you inner pages also and this will help.

 

what i surprise is: my index page(sub home page) has no backlink. so does inner page. I know backlink help.but I wanna know exactly every problem clear.

 

I guess ,index page links(sub home page) is at every page as navigate bar.maybe this is reason, google sensitive to it other than inner page, I guess ,I 'm not sure.