Notion.com was registered back in October of 1997. The domain name looks to have been sold according to some new data.
It looks like Notion.com was bought by the productivity app Notion.so. Notion.com is now forwarding to Notion.so and has CloudFlare nameservers. .So is the country code for Somalia.
Tip of the cap to Adam from GreenJobs.com
Agency Buds says