Application Insights is billed through the Log Analytics workspace into which its log data ingested. The default Pay-as-you-go Log Analytics pricing tier includes 5 GB per month of free data allowance per billing account. Learn more about Azure Monitor logs pricing options.

After enabling Application Insights by instrumenting an application, we suggest first checking out Live metrics and the Application map.

Application Insights collects telemetry about your app, including web server telemetry, web page telemetry, and performance counters. This data can be used to monitor your app's performance, health, and usage. You can select the location when you create a new Application Insights resource.

Application Insights doesn't handle sensitive data by default. We recommend you don't put sensitive data in URLs as plain text and ensure your custom code doesn't collect personal or other sensitive details. During development and testing, check the sent data in your IDE and browser's debugging output windows.

Many community-supported Application Insights SDKs exist, but Microsoft only provides support for instrumentation options listed in this article.

Yes, you can incur more network costs, which vary depending on the region the telemetry is coming from and where it's going. Refer to Azure bandwidth pricing for details.

Azure Monitor Application Insights, a feature of Azure Monitor, excels in application performance monitoring (APM) for live web applications.

Application Insights provides many experiences to enhance the performance, reliability, and quality of your applications.

Firewall settings must be adjusted for data to reach ingestion endpoints. For more information, see IP addresses used by Azure Monitor.

Most Application Insights data has a latency of under 5 minutes. Some data can take longer, which is typical for larger log files. See the Application Insights service-level agreement.

To understand the number of Application Insights resources required to cover your application or components across environments, see the Application Insights deployment planning guide.

Data is sent to an Application Insights Log Analytics workspace. You can choose the retention period for raw data, from 30 to 730 days. Aggregated data is retained for 90 days, and debug snapshots are retained for 15 days.