You can see it againUnder pressure people bring back shapes and positions long after the wording has gone.
Picture superiority · Shepard 1967, Standing 1973
The ISTQB® Certified Tester Performance Testing (CT-PT) certification validates your ability to plan, design, and execute performance tests that reveal how systems behave under load. It is for testers and performance engineers who want to master the technical, method-based, and organizational aspects of performance testing. Earning it demonstrates you can turn performance risks and goals into measurable, actionable results that protect business-critical applications.
Content last reviewed 30 July 2026 · Up to date
What this certification covers, who it is written for, and what the exam itself looks like on the day.
What it validates, who it is written for, and the experience it assumes.
The ISTQB® Certified Tester Performance Testing (CT-PT) certification provides comprehensive knowledge of performance testing, covering technical, method-based, and organizational aspects. It equips you to understand basic concepts, define performance risks and goals, collect and analyze metrics, and design and execute performance tests that meet stakeholder expectations.
This certification goes beyond theory: you will learn how to plan performance tests, use load generation concepts, identify common failure modes, and report results effectively. It also covers how performance testing fits into the software lifecycle and how to select and use performance testing tools. By earning CT-PT, you demonstrate a professional-level understanding of performance testing that is recognized worldwide.
The Performance Testing certification is aimed at anyone involved in software testing who wishes to broaden their knowledge of performance testing or who wishes to start a specialist career in performance testing. It is also designed for anyone involved in performance engineering who wants to gain a better understanding of performance testing. This certification is ideal for testers, test analysts, performance testers, and performance engineers who want to deepen their expertise in performance testing and contribute more effectively to their teams.
While there is no formal experience requirement beyond holding the CTFL certificate, a background in software testing and familiarity with performance testing concepts is beneficial. Understanding of fundamental software testing concepts; Basic knowledge of performance testing principles; Familiarity with performance testing tools and metrics
Every domain and objective ISTQB measures, with the weight they carry on the exam.
The official ISTQB exam outline · checked 30 July 2026 · See the source
Everything ISTQB publishes about sitting it, and nothing we inferred.
Hold the Certified Tester Foundation Level (CTFL) certificate.
The path ISTQB lays out, how the credential is kept, and where to book.
Step-by-step path to Certified Tester Performance Testing
ISTQB certifications do not require renewal except for Expert Level. Stay current with the latest technologies and maintain your certification.
Learn more about renewal requirementsThis certification is currently active and available. ISTQB maintains this certification to validate current skills and industry relevance.
Register for the exam through ISTQB Member Boards, ISTQB’s authorized testing partner.
Schedule your examVisit the official ISTQB certification page for exam policies and requirements.
View the official pageYour coach in the app reads what you have answered with the book closed and tells you one thing to do tonight. It will not count an answer you gave with the page open, and it will tell you when you are not ready.
See how the coach worksCT-PT is a Specialist level certification that builds on the Foundation Level. You must hold the Certified Tester Foundation Level (CTFL) certificate to be eligible for CT-PT.
No, the CT-PT exam is a multiple-choice exam with 40 questions. There is no hands-on or lab component.
ISTQB exam retake policies are set by each Member Board or exam provider. Please contact your local ISTQB Member Board or exam provider for specific retake rules and waiting periods.
The CT-PT certification is relevant for software testers, performance testers, performance engineers, and anyone involved in performance testing or performance engineering who wants to validate their skills.
ISTQB certifications do not require renewal except for Expert Level. However, you may choose to pursue other Core, Agile, or Specialist stream certifications to broaden your skills.
Yes, the CT-PT exam is delivered by ISTQB Member Boards and their accredited exam providers. Availability, pricing, and delivery options may vary by region. Please contact your local Member Board for details.
Every domain, every objective, and every concept ISTQB measures — each one written out.





Every objective below is a page you can open and practise now, without an account.
The official ISTQB exam outline · checked 30 July 2026 · See the source
In front of every objective the practice pages are already there, free and without an account. This is one objective, opened.
30 questions on this objective, five to a page. Every range above is a real page, open now, with no account.
The curriculum tells you what is on the exam. Proving you know it is a different job — and it is the one the closed-book run does.
The whole bank is open. 5 questions to a page, every answer explained, and a discussion thread on each one.
Every objective, and every page range, is a link — so you can pick up exactly where you left off.
Short enough to finish, long enough to matter.
Not only which one is right — why the others are wrong.
Ask, answer, and vote. Every question has its own thread.
These are not trivia. Each one is written against a concept in the book, so when you get one wrong there is somewhere to go and find out why.

The pages shown here come from our AI-900 book — an example of how each concept is written in plain language and, where the idea needs one, drawn as a full page you can take in at a glance.





Three reasons, and each one is a real finding rather than a slogan.
You can see it againUnder pressure people bring back shapes and positions long after the wording has gone.
Picture superiority · Shepard 1967, Standing 1973
The whole idea at onceWhere it starts, what happens in the middle, what comes out, and the mistake to avoid.
Multimedia principle · Mayer
The look-alikes sit togetherThe pairs the exam tests are drawn side by side, so the difference is seen, not told.
Dual coding · PaivioYou are never asked to read a poster here — only to see how one is built. After that, every other page is legible at a glance.

The idea as a sequence, followed with a finger before a word is read.
What it is, how the machine learns it, when it is the right tool.
The distinction the exam tests, given its own box instead of buried in prose.
The sentence to carry into the exam room.
This is the part that teaches. The illustration and the written explanation stay where they are while you work, so a scenario stops being a memory test and becomes something you can simply look at.
A smartphone uses AI to unlock when the owner looks at the camera. Which AI capability is being used?

The same questions come back with the book closed — that run is the one that counts. After it, your coach picks one thing for tonight, sized to the time you have, and brings pages back before you lose them.
Testing effect · Roediger & Karpicke 2006 · spacing effect · Cepeda et al. 2006
Where the exam is defined, scheduled and scored.
We link to them rather than repeat them, so nothing here goes stale behind them.
We build from the official skills outline, not from a summary of it — 22 objectives, 122 concepts written under them, and free questions against every one. When ISTQB changes the outline, this page changes with it.
That is the only question worth answering the night before, and no link answers it. You answer it by taking the questions with the book closed, and seeing what comes back.