SQLCrab
Quiet signalPractice SQL. Real interview questions, graded instantly.
Launched 1mo ago
Signal
15
Velocity
0
What this means
17Founder Conviction Index: 17 — low signal.
Few of the conviction sub-signals (reputation, velocity, buyer-intent, tagline clarity) are firing yet.
3 launchesSerial maker — this is their 3rd launch.
Best prior: ColdCase Labs, attention 2.
Prediction
Top-5 finish probability
9%
today
Projected end-of-day votes
3range 2–4
Trajectory
stable
Vote pace holding steady.
About
SQLCrab: practice real SQL interview questions in your browser on a real Postgres engine. Free tutorial, concept cards, sandbox, and graded labs, no setup.
AI Summary
SQLCrab is an online platform that allows users to practice SQL interview questions using a real Postgres engine. It offers free tutorials, concept cards, and graded labs without the need for setup.
Attention & discussion velocity
Performance
Velocity0
Vote pace vs average
Momentum0
Sustained over 6h
Virality0
Spread × engagement
Engagement—
not measured
Signal sources
2 of 6 active- Launch tracking10 readings since we picked it up
- AI analysisEducation
- Comment intelligenceno discussion to analyse
- Outside discussionnot checked — domain is a storefront or shared
- Revenue signalsno match on this domain
- Editorial scoringbelow the signal threshold for this pass
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.