Protective business name that was based on the word "strong".
The word "strongle" contains eight letters and only two syllables. Two syllable names make popular global brands. Successful brands using two syllable names include FedEx, Google and Walgreens.
Strongle.com is a dot-com domain. Dot com domains are the most prestigious top-level-domain in the world, famously used by websites like facebook.com. When you own a dot-com, it is much easier to rank for your own name in search engines.