# Attestation Effectiveness

**Overview**

Attestation Effectiveness is a key metric for tracking the overall performance and efficiency of a node’s ability to perform its tasks validating the network. It is formally defined as:<br>

<figure><img src="https://lh7-us.googleusercontent.com/k5rpJ7pUSFWTpByQ_NS8NpdTFk3qtecQR8FHOjev8rVGtqsLGgryCVxtbo1PKOP3e6EEgsffoL5gK4DASAjM7EaX0I-4CBVnK6KTGtxlAJyW2qBlmZOEL3KeVuIWGRdvetukd7zxTw5d8nZnMuCKb70" alt=""><figcaption></figcaption></figure>

Where if the earliest inclusion slot is also the actual inclusion slot, then a validators Attestation Effectiveness is 100%.

**How can I use it?**

<figure><img src="https://lh7-us.googleusercontent.com/nYkXahIMaFwDpdV8mozRCVHpEZxdqa6rC26N99q5a1neujchlO_ONl8XmOAw3WGnCZ4V-YSN9OXsJQZLBU-QGfIwe7gRRzAjbQW4mXazRY7o8a24NPeueNn1dw4rpJQneO6piBealrnaZBWgRwxFfec" alt=""><figcaption></figcaption></figure>

This indicator is most informative when looking over a longer time range. By tracking the Attestation Effectiveness of one specific vault or the aggregated collection of vaults on Stakewise, a user can identify trends in the overall performance of validators in the protocol. While momentary drops in effectiveness are usually not a large concern, a consistent decline overtime can indicate that the validators are struggling to perform their validating task effectively. If a user sees this occurring in the vault that they have allocated ETH to, they may want to consider switching to another vault to avoid any potential slashing penalties.


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