Challenges

BotStopper supports these challenge methods. Each page describes the method and its configuration.

• fast: optimized proof of work with multiple threads.
• argon2id: memory-hard proof of work.
• hashx: proof of work with a generated hash function.
• preact: a lightweight browser challenge.
• meta-refresh: a browser refresh after a delay.
• soteria: proof of work with an obfuscated virtual machine.

Use thresholds to select challenges from request weight. Use extensions to add checks to a challenge.