> For the complete documentation index, see [llms.txt](https://gia-duong-duc-minh.gitbook.io/notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gia-duong-duc-minh.gitbook.io/notes/computer/tcp.md).

# Transmission Control Protocol (TCP)

Most web servers TCP slow start algorithm starts by sending 10 TCP packets.

The maximum size of a TCP packet is 1500 bytes.

Each TCP packet uses 40 bytes in its header — 16 bytes for IP and an additional 24 bytes for TCP

That leaves 1460 bytes per TCP packet. `10 x 1460 = 14600 bytes` or roughly `14kB`!

<https://www.tunetheweb.com/blog/critical-resources-and-the-first-14kb/>