Observed arrival · 2026-11-10
Silbuk, a mock-exam timer that records time per question
A free browser-based timer for Korean exam practice, with exam-style clocks, per-question timing, scoring, and review.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Students practicing timed Korean mock exams
- Worth noticing
- Answer keys can be entered in a compact format such as “12345 51512” for automatic scoring.
Field notes
The page describes keyboard controls for logging progress: Space marks a question complete, the right arrow puts it on hold, and the left or down arrow moves among held questions. Its review view is said to include a time graph, a solving-order timeline, and a “Time Killer” list. Records are tied to the current browser, so clearing browser data removes them and using another device does not carry them over.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue