It doesn't work correctly with third level domains. speedtest.me.uk exists, but typing speedtest.me does not suggest it, and speedtest.me.u suggests speedtest.

It doesn't work correctly with third level domains. speedtest.me.uk exists, but typing speedtest.me does not suggest it, and speedtest.me.u suggests speedtest.me.us first (doesn't exist). (.me.uk is a second level domain category in .uk, intended for personal domains.)