Great, fitness-focused domain name that blends in the words "gym" and "fantastic".
The name "Gymtastic" has nine letters and three syllables. Successful brands using three syllable names include Microsoft, Nescafé and Toshiba.
Gymtastic.com is a dot-com domain. Dot com domains are the most valuable top-level-domain in the world, famously used by websites like twitter.com. A dot-com is the first thing people think of when they think of a website.