Single letters are allocated to "root" DNS servers. I built this a while back: https://linkpeek.com/blog/website-screenshot-of-every-two-letter-domain.html ht

Single letters are allocated to "root" DNS servers. I built this a while back: https://linkpeek.com/blog/website-screenshot-of-every-two-letter-domain.html https://linkpeek.com/blog/website-screenshot-of-every-two-le... https://linkpeek.com/blog/firework-project-screenshot-every-two-letter-domain.html https://linkpeek.com/blog/firework-project-screenshot-every-...