Evaluat for Web Apps

Real-browser load testing with Core Web Vitals, session video and logs for every virtual user

Evaluat is performance testing for websites and web apps, run in real browsers. It lets you rehearse your busiest day before it happens. Evaluat sends virtual users through your real customer journeys, homepage to checkout, at the traffic you expect at peak. Every virtual user is a real, isolated browser, so the numbers match what your customers see, down to how fast each page renders.

What every test gives you

• Core Web Vitals (LCP, INP and CLS) plus FCP, captured per session and per page while the site is under load.

• Server-side numbers beside them, including TTFB, throughput, error rate and p50 to p99 response times.

• One Apdex score for the whole run, with thresholds you set.

• A video, network log and console log for every virtual user, so you can open the slowest session and watch what went wrong.

• A shareable report with five views (Overview, URLs Performance, Sessions, Console Logs and Network Logs).

• An Executive Summary you can generate on demand. It gives a plain-language verdict with a health score, key findings ranked by severity and recommended fixes.

How it works

• Build the journey once in a visual step editor. No scripts.

• Pick the crowd. Set the number of users, how fast they arrive, how long to hold at peak and how they leave. The same tool covers load, stress, spike and soak tests.

• Run it from the UK or the EU, straight away or on a schedule.

• Read the verdict, then hand the evidence to your engineers.

Who it is for

Evaluat is built for e-commerce and other transaction-heavy teams who need to know the site will hold up on Black Friday, a launch day or a big campaign. That includes engineering and QA leads, e-commerce and digital managers, and the agencies that build and run their sites.

Try it free

Evaluat Pulse is a free website speed test. Enter a URL and it loads the page once in a real browser, measures LCP, CLS, FCP and TTFB, gives the page an A to F grade and records a video of the load. No signup needed. You'll find it under Resources on the Evaluat website.

Performance testing is available on subscription plans through assisted private access. Book a demo on the Evaluat website to see it run against your own site.