What happens when you search for a kitten on the Internet
summary
Starts from DNS then measures real costs and gains: DNS caching and TTL tradeoffs, the odd limit of 13 root IP addresses and distribution via anycast across 600+ servers, use of DNS over HTTPS or DNS over TLS for privacy, HTTP/2 adoption (~50% of popular sites in 2021) for multiplexing and server push, TCP three‑way handshake and retransmissions for reliability, and TLS 1.3 cutting handshakes to one RTT and enabling zero‑RTT to speed encrypted kitten delivery.
AI-written summary · about
chapters (9)
- 0:00Start
- 4:24Domain Name System
- 10:33TCP/IP
- 16:08Transmission Control Protocol (TCP)
- 18:48Asymmetric encryption
- 21:09Digital certificate
- 23:04Transport Layer Security (TLS) and Cipher Suits
- 24:21SSL and TLS protocols
- 25:31TLS 1.3 improvements
