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Performance Analytics
The Performance tab shows how your site's backend is behaving: API request volume, error rates, response times, and client-side activity. It sits alongside the Summary and Traffic tabs inside Site Analytics.
Where the numbers come from
Performance data is read from Azure Application Insights. If Application Insights has not been configured for your site, the cards show "App Insights not configured" instead of a value — nothing is estimated or filled in.
Opening the Performance tab
- Open Site Analytics for your site.
- Select the Performance tab (next to Summary and Traffic).
- Use the date-range picker in the top-right to change the reporting window.
API Performance
The top row reports on requests handled for your site over the selected date range:
| Card | What it measures |
|---|---|
| API Requests | Total requests recorded in the window |
| Failed Requests | Requests that returned an error |
| Error Rate | Failed requests as a percentage of the total |
| Avg Response Time | Mean server response time |
| P95 Response Time | 95th-percentile response time (the slow tail) |
Client Activity
When client-side telemetry is available, a second section summarises what visitors' browsers reported:
- Total Page Views, Avg Page Duration, Total Events, and Total Exceptions as headline cards.
- Top Pages — most-viewed pages with their view count and average duration.
- Top Events — most-frequent tracked events with counts.
- Top Exceptions — most-common client-side errors, with the error type, message, and when it was last seen.
Where a section does not have enough data yet, it shows "Not enough data yet" rather than placeholder figures.
Next Steps
- Site Analytics — visitors, traffic, and search
- Development Requests — ask for a change to your site