Engineering · Oct 8, 2025 · 8 min read
Edge rendering is no longer optional
Why we deploy every site to the edge by default, and what 'edge' actually means in 2026.
What 'edge' means now
Edge means your code runs in 250+ data centers globally, within 50ms of your customer. Not just static files — actual code. Authentication, personalization, A/B tests, all at the edge.
What you gain
- TTFB under 100ms anywhere in the world
- No cold-start lag for serverless logic
- Geo-aware content without complicated CDN rules
- Simpler deploys — push and it's everywhere
What you give up
- Direct database connections (use connection-pooled or HTTP-based DBs)
- Some Node.js APIs (most polyfilled now, but check)
- Long-running tasks (use queues for those)
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