"Coinvocation" is a nice, catchy brand name that inspires expertise and professionalism.
Coinvocation has 12 letters and four syllables. Successful brands using four syllable names include Unilever, Airbnb and Panasonic.
Coinvocation.com is a dot com domain. Dot com domains are the most prestigious top-level-domain in the world, famously used by websites like google.com. Once secured, a dot com all but guarantees no-one else can outrank you for your own name in the long run.