This blend of the words "cognition" and "line" makes for a great tech-focused domain name.
The word "CogniLine" contains nine characters and three syllables. Leading companies using three syllable names include KFC, Mastercard and Delicious.
Cogniline.com is a dot com domain. Dot com domains are the most sought after top-level-domain in the world, famously used by websites like youtube.com. When most people think of a website, they think of a dot com.