To post to Twitter without a URL / Link:
1) Log into dlvr.it
2) Go to your Socials Tab
3) Click on the Twitter account and click on 'Edit'
4) Select "Post Title" and/or "Post Body"
5) Select "Post Link" to include the link
6) Save
Tip for Advanced Users:
When posting Body, you may choose between Summary and Full Body content:
http://support.dlvr.it/entries/264365-feeds-summary-vs-full-body