Where the page is rendered

  • Choose
  • Pixel 01

Difficulty 1 of 5

A launch page shows the same 12 product cards to every visitor on 4G (65 ms round trip). It gets 40 views/s, and six times that for 30 s at 0:20. Pick how the page is made. First content p99 must stay under 400 ms. Budget: 80 USD/month.

Play level

Options

  • Build the page on a server for each view
  • Send a small shell, then build the page in the browser
  • Build the page once and serve the file from the edge
A page waits for its slowest callDrag or use arrow keys to change the calls per page

Goals and limits

p99 latency
under 400 ms
Error rate
under 0.1%
Monthly cost
under 80 USD/mo
Traffic
40 req/s

Concepts

How players did

Player results load from the server.

All levels