Mean Time To Detect
What Is Mean Time To Detect?
Mean Time To Detect (MTTD) measures the average time between the start of an incident or failure and the moment the team becomes aware of it.
Why Mean Time To Detect Matters
Lower MTTD helps organizations:
- reduce customer impact sooner,
- start response workflows faster,
- improve confidence in monitoring and alerting,
- strengthen overall reliability operations.
How To Improve MTTD
Teams often improve MTTD by:
- instrumenting critical services well,
- correlating logs, metrics, and traces,
- reducing alert noise,
- defining better thresholds and ownership.
Detection speed is only one part of incident performance. It should be paired with restoration speed and post-incident learning.
