Wirewiki debuts near-instant autocomplete across 240 million domain names

Wirewiki, a site for inspecting DNS records, delegation and email deliverability data, has built an autocomplete feature that predicts and prefetches results before a user finishes typing. By fetching suggestions for the current character plus every possible next character during the keyDown event, then rendering them on keyUp, the tool displays matches from a 240-million-domain index with almost no perceptible delay.