SNI allows hosting multiple SSL Certificates on one IP, but is itself a privacy problem, because https requests have the domain in plain text. ESNI can solve t

SNI allows hosting multiple SSL Certificates on one IP, but is itself a privacy problem, because https requests have the domain in plain text. ESNI can solve this, by encrypting the SNI header while still allowing serving multiple https domains on one IP. But it’s currently mainly implemented by cloudflare.