Q: How many M-Lab tests can I run per day?
A: M-Lab implements a rate limit of 40 tests per day per IP address to ensure fair access to the platform and prevent abuse. This limit applies across all M-Lab measurement tools (NDT, Wehe, etc.) and resets every 24 hours.
Key Points
- The limit is enforced per source IP address
- It covers all test types combined (not 40 per tool)
- The counter resets daily
- Exceeding this limit will result in test requests being rejected
For Research or Organizational Use
If you need to conduct measurements at a higher rate for legitimate research purposes, please contact M-Lab support to discuss your requirements. We may be able to accommodate special cases with proper justification.
Alternative Approaches
- Distribute tests across multiple IP addresses if available
- Space out your measurements throughout the day
- Consider using M-Lab’s historical datasets for analysis instead of running new tests
This rate limiting helps ensure the platform remains available and responsive for all users worldwide.