How do you conduct performance & load tests for passkeys?

How Do You Conduct Performance and Load Testing for Passkeys?#

Performance and load testing are essential to ensure that passkey systems can handle high authentication volumes and maintain reliability under stress.

Here’s how to conduct these tests:

1. Establish a Baseline#

• Historical Data Analysis: Use login data to identify peak usage patterns, such as the maximum number of authentications per second.
• Capacity Target: Set a baseline by multiplying the peak load by a factor (e.g., 3x) to account for unexpected traffic surges.

2. Simulate Real-World Conditions#

• User Behavior: Create scripts that replicate common user actions, such as passkey registration, authentication, and fallback scenarios.
• Concurrent Sessions: Test the system with multiple simultaneous authentications to simulate peak usage.

3. Leverage Load Testing Tools#

• Specialized Plugins: Use tools like JMeter or K6 with WebAuthn plugins to simulate passkey flows.
• Automation Frameworks: Integrate these tools into your CI/CD pipelines for continuous performance monitoring.

4. Monitor Key Metrics#

• Response Times: Measure the time taken to complete authentication or registration requests.
• Throughput: Track the number of successful authentications per second.
• Error Rates: Identify failure points and ensure they remain below acceptable thresholds.

5. Validate Scalability#

• Database Optimization: Ensure backend systems can handle increased loads without performance degradation.
• Load Balancing: Test the efficiency of load balancers in distributing authentication requests.

6. Simulate Edge Cases#

• Network Variability: Test under poor connectivity, such as slow or intermittent networks.
• Stress Testing: Push the system beyond expected limits to identify breaking points.

7. Iterate and Optimize#

• Identify Bottlenecks: Analyze results to pinpoint areas needing improvement, such as database queries or API calls.
• Retest: Repeat testing after optimizations to confirm improvements.

By conducting comprehensive performance and load testing, enterprises can ensure their passkey systems remain reliable, scalable, and efficient, even during high-demand scenarios.

Read the full article#

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Corbado is the Passkey Intelligence Platform for CIAM teams running consumer authentication at scale. We help you see what IDP logs and generic analytics tools can't: which devices, OS versions, browsers and credential managers support passkeys, why enrollments don't turn into logins, where the WebAuthn flow fails and when an OS / browser update silently breaks login, all without replacing Okta, Auth0, Ping, Cognito or your in-house IDP. Two products: Corbado Observe layers observability for passkeys and any other login method. Corbado Connect adds managed passkeys with analytics built in (alongside your IDP). VicRoads runs passkeys for 5M+ users with Corbado (+80% passkey activation). Talk to a Passkey Expert →