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Tags Cardinality Explorer - Generally Available #29960

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e4f31fe
removed tags cardinality explorer preview banner
ouracheal Jun 16, 2025
a850510
removed preview banner
ouracheal Jun 16, 2025
dc805f3
further readings, added end to end governance blog
ouracheal Jun 16, 2025
6439e39
Merge branch 'master' into rachealou/tags-cardinality-explorer-ga
ouracheal Jun 16, 2025
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remove a word
urseberry Jun 16, 2025
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7 changes: 3 additions & 4 deletions content/en/metrics/guide/custom_metrics_governance.md
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Expand Up @@ -13,6 +13,9 @@ further_reading:
- link: "/metrics/volume/"
tag: "Documentation"
text: "Metrics Volume Management"
- link: "https://www.datadoghq.com/blog/custom-metrics-governance/"
tag: "Blog"
text: "Best practices for end-to-end custom metrics governance"
---

## Overview
Expand Down Expand Up @@ -61,10 +64,6 @@ Additionally, review [Usage Attribution][3] information for a total breakdown of

#### Metric-level visibility

{{< callout url="https://forms.gle/H3dG9tTdR6bqzHAX9" >}}
Custom Metrics Tags Cardinality Explorer is in Preview. Use this form to request access today.
{{< /callout >}}

{{< img src="metrics/tagsexplorer.png" alt="Custom Metrics Tags Cardinality Explorer for a spiking metric name" style="width:80%;">}}

Once you've identified which metric names are driving up your account's monthly usage and costs, you can navigate to the metric's details side panel to view the Custom Metrics Tags Cardinality Explorer. This shows you which tag keys are driving a particular metric's cardinality to spike. Any spammy or unbounded tag keys with large increases in the number of unique tag values are the likely cause. Exclude them using Metrics without Limits™ to achieve immediate cost savings.
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4 changes: 0 additions & 4 deletions content/en/metrics/summary.md
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Expand Up @@ -154,10 +154,6 @@ To determine the value of any metric name to your organization, use Metrics Rela

## Custom Metrics Tags Cardinality Explorer

{{< callout url="https://forms.gle/H3dG9tTdR6bqzHAX9" >}}
Custom Metrics Tags Cardinality Explorer is in Preview. Use this form to request access today.
{{< /callout >}}

{{< img src="metrics/tagsexplorer.png" alt="Custom Metrics Tags Cardinality Explorer for a spiking metric name" style="width:80%;">}}
To determine why a particular metric name is emitting a large number of custom metrics, or spiking, use the Custom Metrics Tags Cardinality Explorer. This helps you pinpoint the tag keys driving the spike, which you can immediately exclude using Metrics without Limits™ for cost savings.

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