Jeff Reifman

patreon-badge-ncYou can follow me at @reifman or learn about my technology consulting.

This is part of an ongoing blog series on launching my startup Browse all posts in this series.

When you’re preparing to launch a new startup, the domain name is critical. However, there are fewer and fewer dot com names to choose from – and purchasing one can be expensive.

When I launched Geogram, I chose to purchase the dot com domain name. However, for my latest projects Filtered and EasyList, I decided to go with a new gTLD extension, .io. In geek terms, .io means input/output … but it’s also synonymous with the innermost of Jupiter’s moons. Google treats .io in search results like a generic domain extension – so it can be used globally by startups, whereas other country extensions might not show up when people run searches.

Many startups are now using .io extensions e.g. – so if you have a good concept, I think you can build the brand around this extension.

.io extensions are more expensive than .com domain names but there is much greater availability. What’s $30 annually extra for your awesome startup idea? has proven a useful tool to find available domains in various extensions e.g. .com, .io, et al. It also offers a handy iphone app. You might also check out’s new acquisition, LeanDomainSearch.

I’m using to purchase and manage my .io domains – so far this has worked well.

Domain investors do not yet value .io domains very highly on their own – so it’s best to purchase .io domains only as you see specific use for them. That said, I have invested in a few .io domains such as and


Posted by Jeff Reifman

Jeff is a technology consultant based in the Pacific Northwest. Try scheduling a meeting with his new startup Meeting Planner (, simpler, faster scheduling for work or play and read his series about building it). Follow @reifman on Twitter.