GENEVA (AP) — At its ripe old age of 30 and with half the globe using it, the World Wide Web is facing growing pains with issues like hate speech, privacy concerns and state-sponsored hacking, its creator says.

Cambridge-based Tim Berners-Lee joined a celebration Tuesday of the Web and reminisced about where he invented it — at CERN, the European Organization for Nuclear Research — beginning with a proposal published on March 12, 1989.