Mempool and Fee Markets

10 min readarticleIncludes quiz · 5 questions

Understanding the mempool and fee markets is crucial for optimizing transaction costs and confirmation times.

Mempool Basics:

  • •Definition: Pool of unconfirmed transactions
  • •Size: Varies with network activity
  • •Priority: Higher fees = faster confirmation
  • •Purging: Old low-fee transactions dropped
  • •Visualization: Real-time mempool explorers

Fee Optimization Strategies:

  • •RBF (Replace-By-Fee): Bump stuck transactions
  • •CPFP (Child-Pays-For-Parent): Accelerate parent tx
  • •Batching: Combine multiple payments
  • •SegWit: 40% fee reduction
  • •Lightning: Avoid on-chain fees

Test Your Knowledge

This lesson includes a 5-question quiz (passing score: 75%).

Quiz functionality available in the mobile app.