A play on "sure", this domain conveys certainty and would ideally suit any company, product or brand that requires people are "sure" about something.
The name "sureific" has eight characters and three syllables. Successful brands using three syllable names include Armani, Vodafone and Adobe.
Sureific.com is a dot-com domain. Dot com domains are the most prestigious domain extension 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.