How is this page different from the experience itself?

This localized page is for search and orientation. The interactive 3D experience opens at the language-neutral URL.

Which languages are officially reviewed?

Japanese and English are treated as the officially reviewed text for each exploration.

How are other languages handled?

Other languages are shown as machine translations from the English source with a link back to the original.

Packet Journey: How a Message Travels the Internet

Explore how one message becomes packets and travels through DNS, NAT, firewalls, TCP/UDP/QUIC, HTTPS, CDN, and HTTP responses.

Packet journey · 1/7

Read invisible communication as the journey of small envelopes

A short message from the browser splits into small numbered packets and comes back through name resolution, route selection, confirmation, and response.

The base specification of the IP packet: RFC 791: Internet Protocol.

Start with the 30-second demo to watch the whole journey flow past. The detailed experiment buttons stay hidden here.

Guide30-second demo

1/5

Now: The message splits into small envelopes.
Discovery: First, watch the moment the sentence splits across several envelopes.
Next

bodyenvelopenumber

Discovery check

What is a packet?