# Alert noise

> Alerts that don't need anyone to act: duplicates, known background errors, bots probing dead URLs, flapping checks.

URL: https://pagerless.dev/glossary/noise
Updated: 2026-10-22

## In Pagerless

Logged rather than sent, and counted in the weekly email.

## Related terms

- [Alert fatigue](https://pagerless.dev/glossary/alert-fatigue): When responders receive so many alerts, many not actionable, that they start ignoring or muting them and miss the ones that matter.
- [Flapping](https://pagerless.dev/glossary/flapping): A check or alarm that switches between failing and healthy repeatedly in a short time, producing a stream of open and close alerts.