Bing not indexing my site (seocorpvn)

Marketing
1

Bing basically its not indexing anything of my four sites, where google indexes 40 to 100 % of those sites.

However, it seems that Bing is indexing considerably more back-links at other websites compared to google.

Yahoo seems to have more of my content but still Bing not returning any of it !

Is that what others are seeing ?

2

For indexing you web page create your account in webmaster tools in bing and generate xml site map and upload map then your site will be indexed.other option is to put the sitemap in robots.txt file

3

How long has the site been around? Have you submitted it recently?