To post to Twitter with no URL:
1) Log into dlvr.it
2) Click on your Socials tab, click on the Twitter account, and click on Edit
3) Go to the 'Post Content' tab
4) Toggle the switch for "Post Url" to the 'Off' position
5) Select "Post Title" and/or "Post Body"
Tip for Advanced Users:
When posting Body, you may choose between Summary and Full Body content:
Check out dlvr.it's Twitter automation tool for free!