Mercer Mettl Exam: What to Expect, Proctoring, and How to Prepare

If an employer has invited you to a Mercer Mettl exam, the biggest surprise for most candidates is not the questions — it is the setup and the monitoring. Mettl is a platform, so the exact test varies, but the environment it runs in is consistent and heavily supervised. Here is what to expect.

Quick answer: Mercer Mettl (formerly Mettl) is a cloud-based online assessment and remote-proctoring platform used by employers, universities, and certification bodies. You take an employer-configured test from your own laptop or desktop inside a secure, monitored browser. The content depends entirely on the role.

Mettl is configured per employer and per role, so there is no universal "Mettl test." The assessment you receive — aptitude, coding, domain knowledge, personality, or a mix — depends on the job you applied for. The same company may serve different tests for different roles.

That is the main thing candidates report about Mettl on prep forums: unpredictability. You often will not know the exact configuration until you start. The practical takeaway is to ask the employer what type of assessment to expect, rather than assuming.

The vendor claims sizable reach — 700-plus customers and more than 32 million proctored test-takers — and its "Trusted By" logos lean toward exam and education clients such as IIM Bangalore, NISM, ISB, Christ University, and Masai School.

Mettl runs in the browser, and a failed setup is a common source of friction, so check the requirements before test day.

• Network: a minimum of 512 kbps.
• Browser: Chrome 63 and up, Firefox 52 and up, or Safari 12 and up.
• Pop-up blocker: must be disabled for tests.mettl.com, or the test window may not open.
• Firewall: a corporate or home firewall can block the launch.
• Device: desktop or laptop is recommended. The vendor notes that some assessments may not be supported on mobile devices.

Mettl provides a mock or system-check test and a video walkthrough before the real exam. Use them — the candidate FAQ shows that camera and mic permission failures, pop-up blockers, and firewalls are frequent problems, and the mock run is where you catch them.

Proctoring is what most candidates search for, and Mettl stacks several layers. Expect identity checks before the exam and continuous monitoring during it.

Before the exam, Mettl uses three-point authentication:

• Email authentication.
• Mobile OTP verification.
• Official photo-ID identity authentication.

During the exam, several monitoring systems run at once:

• Facial verification against your ID.
• Automated AI monitoring that raises flags on suspicious behavior.
• Live human proctors who can watch in real time.
• The Mercer Mettl Secure Browser (MSB), a lockdown or kiosk mode that limits you to the test screen and only allows admin-approved apps.

On top of that, Mettl offers dual-camera proctoring, using your phone as a second camera for a 360-degree view, with alerts if the phone disconnects, and audio proctoring that filters voices to detect a human speaking.

The secure browser is built to catch specific behaviors. Independent write-ups and Mettl's own materials describe it detecting tab switching and second screens, and disabling unauthorized software and navigation. Tests can also auto-submit — for example on time expiry or after repeated proctoring violations — and the candidate FAQ addresses cases where "my test got submitted automatically."

A practical note on flags: a law firm publicly markets defense services for students flagged by Mercer Mettl proctoring, which reflects real-world disputes over cheating flags. To reduce risk, stay in frame, keep your workspace clear, and avoid anything that looks like tab switching or a second device. If you need an accommodation, Mettl publishes a WCAG-based accessibility conformance report, so ask the employer about options.

For a broader look at how monitored skills tests fit into hiring, see our skills assessments topic hub.

Because employers assemble the battery, you could see any of these, sometimes combined into one multi-section sitting:

• Cognitive aptitude — numerical, logical and abstract reasoning, verbal, and data interpretation. These sections are heavily timed, so pacing is part of the challenge.
• Coding and technical — an in-browser code editor auto-graded against test cases, plus technical multiple-choice questions on languages, databases, and CS fundamentals.
• Domain-knowledge quizzes tied to the role.
• Psychometric and personality questionnaires, which produce trait and competency reports rather than pass or fail scores.

Duration and section counts vary by employer configuration — there is no fixed universal length.

Mettl generates automated candidate reports and delivers them to the hiring employer, including through ATS integrations. Coding answers are auto-scored against predefined test cases, while psychometric tests produce trait and competency reports rather than a pass or fail mark.

Who sees your results: the employer that configured the assessment. Scores are generated per employer-configured test and delivered to that employer, which implies there is no universal, transferable Mettl score you carry between companies. Retake and cooldown rules are governed by the employer rather than a fixed Mettl policy, so ask them directly.

How does Mercer Mettl detect cheating?

It combines several layers — facial verification, AI monitoring, live human proctors, a secure lockdown browser, and optional dual-camera and audio proctoring. The secure browser specifically detects tab switching and second screens and disables unauthorized software.

What are the system requirements for the Mettl test?

You need at least 512 kbps of network, a recent browser (Chrome 63-plus, Firefox 52-plus, or Safari 12-plus), the pop-up blocker disabled for tests.mettl.com, and a firewall that does not block the launch. A desktop or laptop is recommended.

Can you take the Mettl exam on your phone?

It is not recommended. The vendor notes some assessments may not be supported on mobile devices and advises using a desktop or laptop.

Why did my Mettl test submit automatically?

Tests can auto-submit on time expiry or after repeated proctoring violations. The candidate FAQ addresses this directly, which is one reason to complete the system-check mock first.

Do you need a second camera for the Mettl exam?

Only if the employer enabled dual-camera proctoring, which uses your phone as a second camera for a 360-degree view and alerts if it disconnects. Not every configuration requires it, so check your invitation.

Who sees my Mercer Mettl results?

The hiring employer that configured the assessment. Reports are delivered to that employer, sometimes through their ATS, and there is no universal score you carry between companies.

If you are earlier in your job search and want to understand the AI-driven side of hiring more broadly, our guide to the best AI recruiting software of 2026 explains how these platforms screen and evaluate candidates.