Professional domain name inspired by the word "cast".
The word "castily" contains seven letters and three syllables. Successful brands using three syllable names include Santander, Adidas and McDonald's.
Castily.com is a dot-com domain. Dot com domains are the most prestigious top-level-domain in the world, famously used by websites like twitter.com. Once secured, a dot-com all but guarantees no-one else can outrank you for your own name in the long run.
This domain was first registered in March 2017. Older domains have an advantage when ranking in search engines.