I’ve never been to China, but it appears numbers are chosen over letters for ease of memorization, and are not always random digits: https://gizmodo.com/why-do-

I’ve never been to China, but it appears numbers are chosen over letters for ease of memorization, and are not always random digits: https://gizmodo.com/why-do-chinese-urls-use-numbers-not-letters-1571760829 https://gizmodo.com/why-do-chinese-urls-use-numbers-not-lett...