MaskedNybbles

DuckDuckGo has the concept of predefined bangs, in which a search prepended by a bang—a !, followed by one or more letters or characters and a space—redirects a search to another site. Some other sites have adopted the concept. More information can be found at https://duckduckgo.com/bangs.

[EDIT] !g and !w will take you to Google and Wikipedia, respectively.

Not quite what you are asking, but there is little blue cart at https://littlebluecart.com/

My fuzzy memory wants to say it uses/is based atop UDP, and makes it more reliable.

Just checked before posting, and that seems to be the case on a cursory glance of its wiki article: https://en.wikipedia.org/wiki/QUIC

[EDIT] Should have read the article first—and it does mention UDP by the end.