Dallonses logo

Performance Testing & Monitoring

Slow kills conversion. Performance testing keeps your product fast and stable. Ready for whatever traffic comes. Frontend to backend, every millisecond shows up in the business.

We partner with companies to test, monitor, and optimize systems across environments. Bottlenecks get found before users do.

Our software performance testing blends load simulation, real-user monitoring, and observability. You see what is happening under pressure, not guess.

Why Performance Matters

Fast pages and APIs lift conversion, retention, and SEO. Slow systems erode trust. Outages cost revenue. Performance issues hide until traffic spikes. Then they hurt. Modern teams need continuous visibility into speed and scale.

Types of Performance We Assess

Frontend Load Speed. LCP, CLS, FID, Core Web Vitals. API & Backend Latency. Response times, throughput, query health. Load & Stress Testing. High volume simulated against real conditions. System Health. Memory, CPU, errors, and logs under load. Real User Monitoring. What users actually feel across geos and devices.

Strategic Applications

Prepare for launches and traffic spikes with confidence. Hit SEO and accessibility benchmarks with pages that actually move. Cut support tickets, crashes, and slowdowns across user segments. Monitor third-party integrations and APIs for hidden risk.

How We Test Under Load

We build performance testing and monitoring systems. They surface risk early and keep user experiences reliable under real-world load.

Performance Audits

Frontend, backend, infrastructure. We analyze the stack and surface slowdowns, bottlenecks, and instability.

Load & Stress Testing

We run load testing and stress scenarios with Artillery, JMeter, or k6. Scaling limits and failure points get exposed.

Frontend Monitoring

Lighthouse CI, WebPageTest, and RUM dashboards wired in. Core Web Vitals and user-perceived speed tracked continuously.

Backend Performance Testing

APIs, microservices, databases benchmarked. Scripts and tooling, open source or cloud. Whichever fits.

Monitoring & Alerting Setup

Datadog, New Relic, Sentry, or custom dashboards configured for ongoing performance insight.

Optimization Guidance

Concrete fixes for frontend code, caching, DB queries, or infra scaling. Not theory. Tuning you can ship.

Let's find what's slowing you down

FAQ







Other services in QA & Engineering


Ready to work together?

Book a meeting
Aymón holding a Tools magazine in front of their facem
Ari working on a laptop outdoors surrounded by plants
Top-down view of a wooden desk with a keyboard, mouse, and headphones
Hand-drawn illustration of a hand snapping fingers
Nico leaning against a water cooler next to a fire extinguishe
Close-up of an open computer with circuit board and components on a wooden desk
Bernat and Andreu collaborating at a desk with monitors and a laptop
Hand-drawn illustration of an open hand waving
Aymón holding a Tools magazine in front of their facem
Ari working on a laptop outdoors surrounded by plants
Top-down view of a wooden desk with a keyboard, mouse, and headphones
Hand-drawn illustration of a hand snapping fingers
Nico leaning against a water cooler next to a fire extinguishe
Close-up of an open computer with circuit board and components on a wooden desk
Bernat and Andreu collaborating at a desk with monitors and a laptop
Hand-drawn illustration of an open hand waving