![Digicert](https://www.imperva.com/products/wp-content/uploads/sites/11/2020/03/Digicert.png)
![BlueCross BLueShield](https://www.imperva.com/products/wp-content/uploads/sites/11/2019/01/BCBS-black.jpg)
![Automatic Site Failover](https://www.imperva.com/products/wp-content/uploads/sites/11/2018/11/automatic-site-failover-2.png)
How it works
Imperva performs server health checks according to predefined parameters. Results from multiple geolocations are then cross-verified to accurately pinpoint a failover scenario.
A backup site automatically kicks in once an availability issue is identified, and the failover solution instantly reroutes traffic without any TTL (Time to Live)-related delays.
![Health monitor](https://www.imperva.com/products/wp-content/uploads/sites/11/2018/11/health-monitoring.png)
Health monitoring
Accurate real-time health monitoring is enabled by redundant readings from multiple geolocations, while user-configurable parameters provide a high degree of control and sensitivity tuning.
![Load Balancing dashboards](https://www.imperva.com/products/wp-content/uploads/sites/11/2018/11/visibility-and-automation.png)
Visibility and automation
Traffic to your site is monitored in real-time to verify optimal load distribution and availability. Server issues are automatically resolved before they build up and impact site performance.
![instant rerouting](https://www.imperva.com/products/wp-content/uploads/sites/11/2018/11/instant-rerouting.png)
Instant rerouting
Failover is delivered from the cloud, eliminating the performance issues and TTL-related delays of DNS-based or on-premises alternatives.