> For the complete documentation index, see [llms.txt](https://docs.bloomanalytics.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bloomanalytics.io/customer-metrics.md).

# Customer Metrics

- [Cohort Analysis](https://docs.bloomanalytics.io/customer-metrics/cohort-analysis.md): Bloom's Cohort Analysis groups Shopify customers by first purchase date to reveal retention, repeat purchase trends, and lifetime value over time.