Observed arrival · 2026-09-05

Gokaku Drill: Exam Practice for the Qualifications Nobody Else Covers

gokaku-drill.com Observed source

Editorial interest 78/100 Selection signal · not a rating of the site

A Japanese study platform offering free diagnostic quizzes and paid, explanation-heavy practice materials for professional exams.

Landing page captured for the 2026-09-05 issue.

Field notes

The platform uses a diagnostic-first workflow: learners select an exam, answer a short set of questions, review explanations, and choose targeted follow-up material. Its coverage is unusually broad and specific, spanning water pollution, odor measurement, lending regulation, workplace health, rental-property management, and Indonesian language certification. The site lists five free diagnostics and 22 paid materials, including a 50-question water-quality mock exam with separate problem and explanation PDFs.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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