When Bitcoin broke 20,000 on the evening of December 16, Binance experienced a short-term downtime and delay due to a 30-fold increase in traffic. Huobi is currently recovering.
Many users told Wu that Binance was down when Bitcoin exceeded $20,000. Binance CEO CZ said on Twitter that traffic has increased by 30 times and encountered some some scaling and latency issues. It has been fixed now and more servers need to be added in the future. https://t.co/DUhJUUcNYH