Prompt
I'm building a web app for international users and need low latency
Latest observation
Oct 7, 2026
OpenAI APIWeb search: off
For low latency with international users, the biggest wins usually come from reducing the physical distance between users and your app, and minimizing round trips.
A good approach:
- Use a global CDN for static assets, images, JS, CSS, and even cached API responses where possible.
- Deploy your backend close to users with multiple regions or edge functions, especially for latency-sensitive reads.
- Store data regionally when you can, or use a database with global replication if the app needs a shared state worldwide.
- Cache aggressively at the browser, CDN, and server layers.
- Keep requests small and fewer: compress responses, bundle wisely, and avoid chatty APIs.
- Use HTTP/2 or HTTP/3 and enable TLS session resumption.
- Measure from multiple geographies so you know where delays are coming from.
- Route users to the nearest region using geo DNS, latency-based routing, or an edge gateway.
If you want, I can help you choose a concrete architecture based on:
- your stack,
- where your users are,
- whether your app is mostly read-heavy or write-heavy.