One subscription, three certifications: CompTIA Security+, AWS Cloud Practitioner, and Cisco CCNA. Spaced repetition weights review time by the real exam's domain percentages, not equal time on everything. Full-length, correctly-timed mock exams give an honest score estimate, always labeled an estimate, never a prediction. Every question is written fresh from the public exam blueprint; nothing copied from real exams or braindumps, and requests to check leaked questions are refused outright.
Know if your backtest is a real edge or overfit noise. Runs bar-permutation MCPT, Deflated Sharpe, PBO/CSCV, Hansen SPA, Romano-Wolf StepM, a stationary bootstrap and an out-of-sample split on your own returns — no market feed, no API keys.
Personal JLPT tutor (N5–N1): generates an original daily Japanese practice quiz as interactive HTML, grades your pasted answers, tracks weak points over time, and promotes you level by level. Coaching language auto-matches yours (zh-TW / zh-CN / en / ja).
Guides, a 56-item checklist, a ready PR template, and a fill-in team policy for code review culture. Includes 10 good/bad comment pairs and 30 situational review comments, unified by a blocker/suggestion/nit/question/praise severity system.
Run authorized penetration tests / vulnerability assessments end to end: Rules of Engagement (authorization & scope) → recon/enumeration → OWASP Top 10 review → CVSS triage → concrete remediation → a formal assessment report for executives and engineers. Defense-focused: it centers authorization management, systematic enumeration, risk evaluation, and a client-actionable deliverable — not offensive payloads. Authorized targets only; no DoS, destruction, or evasion.
Paste a viral Instagram or YouTube reference and get a score-backed decision: adapt it, change key variables, borrow the format, or skip it.
Academic sanity-check with interactive HTML dashboard. Detects look-ahead bias, over-parameterization, and benchmarks against 10 canonical blueprints via animated SVG gauges and color-coded KPI cards. Parses natural language, code, or CSV uploads. Output auto-adapts (EN/ZH-TW/ZH-CN). Built on De Prado (2018). For students and strategy developers. Not financial advice.