Vercel

Vercel is the platform for frontend developers, providing the speed and reliability innovators need to create at the moment of inspiration. Ship velocity is the product — anything that slows down the path from "something's off" to "shipped a fix" is a tax on the whole company.

The challenge

Vercel deploys constantly. With that cadence, the question is never "did something change?" — it's "which of the forty things that changed in the last hour is the one breaking this?"

Observability, like all religions, comes with orthodoxy: the belief that you need metrics, logs, and traces in three parallel systems to see anything at all. In practice, the team was paying the cost of three systems and still stitching the story together by hand during every incident.

The solution

Vercel collapsed the question into one place. Logs flow into Sazabi, and engineers ask what's wrong in the same breath they'd ask a teammate — no dashboard to pre-build, no query language to remember.

Sazabi feels like an extra engineer on call — we ask it what's wrong and ship the fix. The reality is simpler than the three-pillars dogma: you don't need three kinds of telemetry. You need one, and you need to be able to talk to it.

Results

• Time-to-diagnosis down 60% across the platform team
• One source of truth instead of three parallel telemetry stacks
• Faster incident loops with no increase in on-call headcount