ALPHA Welcome to DF-Labs alpha! Features are in active development — expect bugs, changes, and exciting updates.

COMPETITIVE ARCHIVES

Global Rankings

OVERALL
All Time

Syncing rankings...

How Boards Are Calculated

Overall

Current

Composite ranking from your percentile across all core boards.

  • • Includes Global XP, Domain, Streak, Accuracy, Retention, Level, and Badges.
  • • Higher combined percentile gives a better rank.
  • • Rewards balanced performance, not one-dimensional grinding.

XP

Total XP earned from quiz activity in the selected timeframe.

  • • XP is accumulated from correct answers and milestone events.
  • • Higher XP ranks above lower XP.
  • • Tie handling uses secondary raw values from leaderboard calculations.

Domain

Domain-specific performance score for the selected certification domain.

  • • Scores are calculated from correct vs incorrect answers in that domain.
  • • Higher domain score ranks above lower scores.
  • • Used to highlight specialization strength.

Streak

Current consecutive login streak in days.

  • • Longer active streak ranks higher.
  • • Calculated as all-time current streak.
  • • Designed to reward consistency and daily momentum.

Accuracy

Average correctness percentage over answered questions.

  • • Computed as average of correct answers.
  • • Minimum 50 answered questions required before ranking.
  • • Higher percentage ranks above lower percentage.

Retention

Review correctness on previously seen questions (long-term memory).

  • • Uses only reviewed answers (questions answered more than once).
  • • Minimum of 15 reviewed answers required.
  • • Higher review accuracy ranks above lower retention accuracy.

Badges

Total achievement badges unlocked.

  • • More unlocked badges rank higher.
  • • Badges reflect breadth of platform mastery.
  • • Calculated as all-time leaderboard.
DFLabs
v0.1-alpha|dev:MT
DISCLAIMER: DFLabs is an independent training platform and is NOT affiliated with, endorsed by, or certified by EC-Council. CHFI (Computer Hacking Forensic Investigator) and CEH (Certified Ethical Hacker) are trademarks of EC-Council. This platform provides practice questions for exam preparation purposes only.