Yes, our <a href="https:\/\/pagely.com\/solutions\/high-availability-wordpress\/">High Availability<\/a> (HA) plans run two fully-functional <a href="https:\/\/pagely.com\/blog\/amazon-ec2\/">Amazon EC2<\/a> web servers where application data is actively sync'd in real-time from the primary to the live secondary node. These are purely for serving traffic while your SQL database is isolated onto a separate, elastic Amazon Aurora <a href="https:\/\/pagely.com\/blog\/amazon-rds\/">Relational Database Service<\/a> (RDS) cluster.\n\nThe main objective of an HA system is to provide heightened durability that's able to function continuously without failure while your WordPress app remains in production. When aiming for complete uptime assurance, there are proper accommodations we put in place to counter any potential failure through redundant Amazon-based elements.\n\nEach EC2 web node is housed in two distinct AWS <a href="https:\/\/docs.aws.amazon.com\/AWSEC2\/latest\/UserGuide\/using-regions-availability-zones.html">Availability Zones<\/a> (AZ) linked within a region for low-latency connections and extreme fault tolerance. We're also constantly monitoring both web servers via CNAME DNS to ensure they're in a stable, healthy state.\n\nOne node will always be the primary with the second fully ready to assume the role through auto-failover; traffic is not evenly split between the two in a "typical" load balanced fashion. This is to account for better protection so you always have a reliable resource-healthy point of failure to resort to. Naturally, our <a href="https:\/\/support.pagely.com\/hc\/en-us\/articles\/212827958-What-Is-PressCACHE-and-How-Does-It-Work-">PressCache<\/a> service is designed to weather the brunt of your traffic volume.\n\nWhile this configuration is how High Availability responds best, if you're looking for a multi-server cluster to scale beyond the capabilities of our <a href="https:\/\/pagely.com\/plans-pricing\/">standard plans<\/a>, we can always build a custom cluster environment for you. Depending on your needs, some customers benefit more by scaling vertically (increasing the CPU\/Memory capacity of a single node rather than adding additional nodes in) to better serve high waves of traffic.\n\nIf the threat of downtime scares you, come <a href="https:\/\/pagely.com\/contact\/quote\/">talk to us<\/a>. We're always happy to chat about your situation and help determine which route is most suited for your requirements and needs.