Webmaster Tools - No there indexed page

Hello everyone,
i have a problem because i submit the sitemap of my website but Webmaster tools only indexed 170 pages but submit 1998 pages. The robots is open for all
User-agent: *
Crawl-Delay: 20
Disallow:
Someone can you help me please?
Many thanks for advance
Domain is: http://ift.tt/1MinOFs

from Google Sitemaps http://ift.tt/1GuSVj6
via IFTTT
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