ISTOK
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Three CEFR-aligned formats. Adaptive engine, MIPT academic rubrics, instant result.

Formats

Pick a format

From a five-minute check to a full level certification.

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Demo

20 minutes

A quick check of reading and listening. Gives a feel for how the testing works.

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On request

Level assessment

125 minutes

An adaptive test: each next question is chosen from your previous answers, and difficulty depends on how many you get right.

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On request

Level certification

140 minutes

Level certification on the CEFR scale (A2–C2). All four language skills and an ISTOK MIPT certificate; error analysis on request.

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Methodology

Accurate assessment

Adaptive difficulty

Task difficulty adapts to your answers — accurate level in minimum questions.

AI writing assessment

Open-ended answers are scored on rubrics trained on the MIPT corpus.

CEFR scale

Result aligned with international standards (A1–C2).

Objectivity

No human bias in scoring: the same criteria apply to everyone.

Certificate

What's in the certificate

Overall CEFR level (A1–C2)
Per-skill scores: reading, listening, writing
Date of completion and a unique verification ID
PDF format — easy to attach to your CV or send to an employer
ISTOK certificate

Start with the demo

20 minutes, no signup. Discover your level right now.

Try the demo