An approachable and appealing brand name which could be well suited to a fitness, comic or design company.
The word "roflz" contains only five letters and just one syllable. Mono-syllable names are exceptionally rare and very sought after. Successful brands using one syllable names include Chase, Box and Shell.
Roflz.com is a dot-com domain. Dot com domains are the most desirable top-level-domain in the world, famously used by websites like youtube.com. Owning a dot-com says that you own the word "roflz" online.