Interesting, thanks. Is it difficult to just try to DNS-query for all possible confusing homographs, and display punycode unless all responses are negative? Not

Interesting, thanks. Is it difficult to just try to DNS-query for all possible confusing homographs, and display punycode unless all responses are negative? Not sure if that would overload DNS servers too much (maybe limit it to 3 characters and display punicode otherwise to avoid exponential blowup?), but it should be very cacheable.