Great, fitness-focused domain name that blends in the words "gym" and "fantastic".
The word "Gymtastic" contains nine letters and three syllables. Leading companies using three syllable names include Heineken, Adidas and Santander.
Gymtastic.com is a dot com domain. Dot com domains are the most sought after domain extension in the world, famously used by websites like google.com. Once you own a dot com, it will be much easier to rank for your own name in Google.