I work at Notion. I advise you to avoid the .so TLD - there’s a lot of institutional bias against Somalia’s TLD, like blanket blocks in many corporate firewalls. This problem will be worse if you serve public user-generated content from that TLD because the chain of communication from you to SomaliNIC might have a bunch of unknown third party intermediaries where an abuse report can get lost. Today Notion is large &…
I would avoid all of the two-letter domain names. I suffered 8 hours of excruciating downtime back in 2012 when the .st nic went down: https://github.com/stickfigure/blog/wiki/Beware-cutesy-two-l... I learned my lesson, I'll take the .com every time, even if I have to get creative with the name.
Here in Europe all of the national TLDs for countries I can think of off the top of my head are two letter TLDs, and will be regarded as trustworthy in their respective countries.
.no .se .dk .fi .fr .it .de .ch .at .pl .es .sk and so on and so forth