ロードバランサにトラフィックを送信するには、カスタム ドメインの DNS レコード（例: my-app-domain）がロードバランサの IP アドレスを指している必要があります。
グローバル転送ルールの IP アドレスを確認するには、次のコマンドを使用します。
gcloud compute forwarding-rules list
ロードバランサの IP アドレスを参照するようにドメインの DNS A または AAAA レコードを更新します。これにより、既存のカスタム ドメイン URL に送信されたトラフィックがロードバランサ経由でルーティングされるようになります。DNS によってこの変更が DNS サーバーに伝播されるまでに、短い場合で数秒、長い場合で数時間を要する可能性があります。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["わかりにくい","hardToUnderstand","thumb-down"],["情報またはサンプルコードが不正確","incorrectInformationOrSampleCode","thumb-down"],["必要な情報 / サンプルがない","missingTheInformationSamplesINeed","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-09-04 UTC。"],[[["\u003cp\u003eConfiguring a custom domain for API Gateway involves setting up HTTP(S) Load Balancing for API Gateway.\u003c/p\u003e\n"],["\u003cp\u003eUpdating your custom domain's DNS records to point to the load balancer service is required after setting up the HTTP(S) load balancer.\u003c/p\u003e\n"],["\u003cp\u003eTo direct traffic to the load balancer, the DNS record of the custom domain must point to the load balancer's IP address(es).\u003c/p\u003e\n"],["\u003cp\u003eUpdating the domain's DNS A or AAAA record to the load balancer's IP address routes traffic through the load balancer, with DNS propagation taking varying amounts of time.\u003c/p\u003e\n"],["\u003cp\u003eUtilizing a static IP address with DNS when using an HTTP(S) Load Balancer is recommended.\u003c/p\u003e\n"]]],[],null,["# Use a custom domain with API Gateway\n====================================\n\n|\n| **Preview**\n|\n|\n| This product or feature is subject to the \"Pre-GA Offerings Terms\" in the General Service Terms section\n| of the [Service Specific Terms](/terms/service-terms#1).\n|\n| Pre-GA products and features are available \"as is\" and might have limited support.\n|\n| For more information, see the\n| [launch stage descriptions](/products#product-launch-stages).\n\nA custom domain for your gateway can be implemented by configuring [HTTP(S) Load Balancing for API Gateway^PREVIEW^](/api-gateway/docs/gateway-load-balancing). Once the HTTP(S) load balancer for your gateway is set up, follow the steps below to update your custom domain's DNS records to point to the new load balancer service.\n\nThese steps are also required when using an HTTP(S) load balancer with a Google-managed certificate (which requires a domain). Allocating and using [a static IP address](https://cloud.google.com/sdk/gcloud/reference/compute/addresses/create) is recommended when used with DNS. The specific instructions for this step depend on your DNS provider.\n\nFor more information on setting up an HTTP(S) Load Balancer for API Gateway, see [Get started with HTTP(S) Load Balancing for API Gateway^PREVIEW^](/api-gateway/docs/gateway-serverless-neg)\n\n1. To send traffic to the load balancer, the DNS record of your custom domain (for example, `my-app-domain`) must point to the IP address(es) of the load balancer.\n\n To find the IP address of your global forwarding rule, use this command: \n\n ```\n gcloud compute forwarding-rules list\n ```\n2. Update your domain's DNS A or AAAA record to point\n to the load balancer's IP address so that traffic sent to the existing custom domain URL is routed through the load balancer instead. It may take as little as several seconds or as long as several hours for DNS to propagate this change to the DNS server."]]
