Understand loyalty over time.

Group visitors by when they first arrived and watch how they return week over week. Cohort analysis reveals retention and engagement trends, all from anonymized data.

Retention over timeSegment any cohortFully anonymized
your-practice.ghostmetrics.io / cohorts
The cohorts table: daily cohorts shaded by engagement across their first week

See who comes back, and when.

Cohorts group visitors by their first visit, then track how many return over the following days and weeks, so you can measure real engagement, not just one-time traffic.

Acquisition-based cohorts
Daily, weekly, and monthly views
Retention heatmap at a glance
Cohort curves comparing how each daily cohort engages over time

Focus cohorts on what matters.

Apply any segment to the cohort view. See whether visitors from a recall campaign, a paid channel, or a specific action keep coming back, and compare retention between them.

Apply any segment to cohorts
Read return rates for each group
Spot what drives long-term return

Retention you can actually act on.

Know which efforts create lasting engagement.

Acquisition cohorts

Group visitors by when they first arrived.

Retention curves

See return rates over days, weeks, and months.

Segmented cohorts

Focus retention on any segment, like a campaign or action.

Cohort comparison

Compare how different cohorts retain.

Engagement trends

Spot what keeps visitors coming back.

Anonymized

Cohorts use aggregated data, never PHI.

Cohorts, answered

What is a cohort?
A cohort is a group of visitors who share a starting point, like the week they first visited, that you track over time to measure retention.
Can I focus cohorts on a campaign or action?
Yes. Apply any segment, like visitors from a recall campaign or those who completed an action, and the cohort view shows that group’s retention.
Do cohorts identify individuals?
No. Cohort analysis is fully aggregated and anonymized, so no person or PHI is ever exposed.

Measure the loyalty behind your traffic.

Compliant cohort analysis, ready out of the box.