See exactly how your application behaves in production

Built-in observability across your entire stack, including infrastructure metrics, application performance monitoring, and profiling, without deploying or maintaining separate monitoring infrastructure.

Full-stack visibility, no extra tooling required

Infrastructure and service metrics

Track resource usage, identify saturation points, and correlate infrastructure behavior with application changes across every environment.

Application performance monitoring

Built-in APM for PHP and Python via Blackfire captures runtime behavior at the code level. Slow requests, expensive queries, inefficient execution paths, all against the real running environment, not synthetic tests.

Profiling in real conditions

Continuous profiling across NodeJS, Go, Ruby, and Rust from the console, with Blackfire-powered profiling for PHP and Python. See how functions consume CPU and memory over time, without reproducing issues locally.

From the HTTP layer down to the database query

Trace the exact path of a request through your entire stack and pinpoint where performance breaks down.

Infrastructure and service-level metrics per environment
Built-in APM for PHP and Python via Blackfire
Continuous profiling across NodeJS, Go, Ruby, and Rust
Visibility across preview, staging, and production environments
Define performance budgets and block inefficient code on every deploy
Centralized access through console, CLI, and API

Built for teams that can't afford surprises in production

Production debugging

An operations team investigates increased latency by reviewing APM traces and profiling results directly from the production environment. No reproduction steps, no guesswork.

Pre-release validation

A team compares performance metrics between a preview environment and production before deploying. Issues caught before they reach users.

Capacity planning

Engineers analyze long-term resource usage trends to make informed decisions about scaling and cost, based on real data rather than estimates.

Security and isolation

Observability data scoped to your project and environments. Access governed by platform roles. Nothing leaks across projects.

No operational overhead

Monitoring and profiling managed by the platform. No separate observability stack to deploy, upgrade, or maintain.

Minimal performance impact

Profiling enabled selectively by environment or use case. See the impact of changes before they go into production, without adding runtime overhead.

The answers are already in your stack. Upsun surfaces them.

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See exactly how your .css-gf3rmn{color:#D5F800;}application behaves in production