---
title: "Multiple certificates usage"
slug: "loadbalancer-multicerti-vpc"
tags: ["Load Balancer", "vpc"]
updated: 2026-09-17T09:18:03Z
published: 2026-09-17T09:18:03Z
canonical: "guide.ncloud-docs.com/loadbalancer-multicerti-vpc"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Multiple certificates usage

Available in VPC

Application Load Balancer and Network Proxy Load Balancer support the SNI-based multiple certificate feature.

- You set the default certificate by selecting it when you create a listener.
- When a client sends a request, you check SNI and use either an additional certificate or the default certificate.
- You also use the default certificate when the client does not support SNI.
- You can configure multiple certificates for a single domain.
- You can configure up to 25 additional SSL/TLS certificates per load balancer.
- You can add only certificates registered in the Certificate Manager service.

              Note

              

If you have no registered certificate, see [Certificate Manager user guide](/docs/en/security-security-15-1#SSL%EC%9D%B8%EC%A6%9D%EC%84%9C%EB%93%B1%EB%A1%9D) to register a certificate.

## Configure additional certificates

To configure additional certificates:

1. In the VPC environment of the NAVER Cloud Platform console, navigate to **Menu** > **All Services** > **Networking** > **Load Balancer**.
2. Select the load balancer that you want to use multiple certificates with, and then click **[Change listener settings]**.
3. Select a listener that uses the HTTPS/TLS protocol, and then click **[Change Certificate]**.
              Note

              

You can use **[Change Certificate]** only when you select an HTTPS/TLS listener on an Application Load Balancer or a Network Proxy Load Balancer.
4. Select the additional certificate and click **[Add]**.