The firewall wasn't enough. The VPN slowed everyone down. Then came the breach that never should have happened.
Identity-Aware Proxy (IAP) with an External Load Balancer changes that story. It locks your apps behind authentication before a single packet reaches them. No open ports. No exposed endpoints. Only verified identities get through.
With an IAP in front of your External Load Balancer, every request is filtered and authenticated at the edge. The load balancer becomes more than a traffic router—it becomes the access gate. This cuts off entire classes of attacks: brute force logins, automated scans, and every exploit that relies on touching your service directly.
Here’s the flow. A user hits the External Load Balancer. The Identity-Aware Proxy checks their identity with your chosen provider—Google, Azure AD, Okta, or any OpenID Connect service. If authentication fails, the request never even reaches your app. If it passes, traffic flows through to healthy backends, scaled and balanced automatically.
This setup works for public cloud, hybrid networks, and even private resources exposed only on demand. It’s built for zero-trust architectures. You don’t trust the network, the device, or the IP. You trust the identity.
Performance? The IAP check happens fast at the edge, alongside the routing logic of the External Load Balancer. You get secure entry without performance loss. Scaling works the same way: the load balancer handles high concurrency while the IAP ensures that every new connection belongs to someone allowed in.
Integrating IAP with an External Load Balancer also simplifies compliance. Access logs tie every request to a verified identity. Security audits stop being a nightmare of IP lists and machine accounts. You know exactly who did what and when.
The best part is how quickly this can be put in place. You don’t need to refactor your app. You wrap it in identity, and you’re done. No more public URLs waiting for trouble. No more pushing private data through unsecured tunnels.
If you want to see an Identity-Aware Proxy with an External Load Balancer live and working in minutes, check out hoop.dev. It’s the shortest path from exposed to locked down—without losing speed, visibility, or control.