TLS in TLS (Fingerprint Characteristics)
Characteristics: When you wrap TLS around VMess, you are actually running another encryption protocol inside the TLS tunnel.
Principle: This double encryption causes specific patterns in packet length and timing. Ordinary HTTPS web browsing traffic (such as accessing Baidu) and "VMess traffic within a TLS tunnel" differ in packet size distribution. The GFW (Great Firewall) can easily distinguish "proxy traffic" from "web browsing traffic" by analyzing packet length through machine learning.