"Mr. Rate" is a domain name created for a place where you can get anything with regards the topic of "rating".
The name "mrrate" has only six letters and just one syllable. Single-syllable names are highly rare and highly sought after. Examples of one popular syllable names include Ford, Square and Shell.
Mrrate.com is a dot com domain. Dot com domains are the most sought after top-level-domain in the world, famously used by websites like twitter.com. When most people think of a website, they think of a dot com.
This domain was first registered in November 2002. Older domains have an advantage when ranking in search engines.