USE_ORIGIN_HEADERS: コンテンツをキャッシュに保存するには、送信元で有効なキャッシュ ヘッダーを設定する必要があります。これらのヘッダーがないレスポンスは Google のエッジでキャッシュに保存されません。リクエストごとに送信元を完全に通過する必要があるため、パフォーマンスに影響が及び、送信元サーバーの負荷が増加する可能性があります。
POST https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/backendBuckets
PUT https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/backendBuckets/BACKEND_BUCKET
POST https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/backendServices
PUT https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/backendServices/BACKEND_SERVICE
USE_ORIGIN_HEADERS: コンテンツをキャッシュに保存するには、送信元で有効なキャッシュ ヘッダーを設定する必要があります。これらのヘッダーがないレスポンスは Google のエッジでキャッシュに保存されません。リクエストごとに送信元を完全に通過する必要があるため、パフォーマンスに影響が及び、送信元サーバーの負荷が増加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 2025-09-05 UTC。"],[[["\u003cp\u003eThis page guides users on how to configure cache modes for Cloud CDN, which determines how content is cached.\u003c/p\u003e\n"],["\u003cp\u003eUsers can set cache modes to \u003ccode\u003eCache static content\u003c/code\u003e, \u003ccode\u003eUse origin settings based on Cache-Control headers\u003c/code\u003e, or \u003ccode\u003eForce cache all content\u003c/code\u003e via the Google Cloud console.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003egcloud\u003c/code\u003e CLI can be used to set cache modes for backend services or buckets with the \u003ccode\u003e--cache-mode\u003c/code\u003e flag, offering options like \u003ccode\u003eCACHE_ALL_STATIC\u003c/code\u003e, \u003ccode\u003eUSE_ORIGIN_HEADERS\u003c/code\u003e, and \u003ccode\u003eFORCE_CACHE_ALL\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eCache modes can also be configured using API calls, specifically \u003ccode\u003eMethod: backendBuckets.insert/update\u003c/code\u003e and \u003ccode\u003eMethod: backendServices.insert/update\u003c/code\u003e, by modifying the \u003ccode\u003ecacheMode\u003c/code\u003e property in the request body's \u003ccode\u003ecdnPolicy\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eEach cache mode option (\u003ccode\u003eCACHE_ALL_STATIC\u003c/code\u003e, \u003ccode\u003eUSE_ORIGIN_HEADERS\u003c/code\u003e, \u003ccode\u003eFORCE_CACHE_ALL\u003c/code\u003e) has distinct implications on what type of content is cached and how, depending on the nature of the content being served.\u003c/p\u003e\n"]]],[],null,["# Change cache modes\n\nThis page provides instructions for changing cache modes with\nCloud CDN. Cache modes let you configure how Cloud CDN\ncaches your content.\n\nBefore you begin\n----------------\n\n- Read about [cache modes and static content](/cdn/docs/caching#cache-modes).\n\n- Ensure that Cloud CDN is enabled; for instructions, see\n [Using Cloud CDN](/cdn/docs/using-cdn).\n\n- If necessary, update to the latest version of the Google Cloud CLI:\n\n ```\n gcloud components update\n ```\n | **Note:** Make sure that you're using gcloud CLI version `309.0.0` or later.\n\nSetting the cache mode\n----------------------\n\nTo configure cache modes for a Cloud CDN-enabled backend, do the\nfollowing: \n\n### Console\n\n1. In the Google Cloud console, go to the **Load Balancing** page.\n\n [Go to the Load balancing page](https://console.cloud.google.com/networking/loadbalancing/list)\n2. Click the name of your external Application Load Balancer.\n3. Click **Edit** edit.\n4. In **Backend configuration** , select a backend and click **Edit** edit.\n5. Make sure that **Enable Cloud CDN** is selected.\n6. Under **Cache mode** , select one of the following options:\n - **Cache static content (recommended)** : Static content is web assets that don't change for each user. Static content is based on the `Content-Type` in the response. For more information, see [static content](/cdn/docs/caching#static).\n - **Use origin settings based on Cache-Control headers** : Cache responses with [valid cache directives](/cdn/docs/caching#cacheability) in the response headers.\n - **Force cache all content** : Cache all successful content served by the origin, ignoring any `private` or `no-store` directives.\n7. Click **Save**.\n\n### gcloud\n\nFor backend services, use the [`gcloud compute backend-services\ncreate`](/sdk/gcloud/reference/compute/backend-services/create) or\n[`gcloud compute backend-services\nupdate`](/sdk/gcloud/reference/compute/backend-services/update) command\nwith the `--cache-mode` flag.\n\nFor backend buckets, use the [`gcloud compute backend-buckets\ncreate`](/sdk/gcloud/reference/compute/backend-buckets/create) or\n[`gcloud compute backend-buckets\nupdate`](/sdk/gcloud/reference/compute/backend-buckets/update) command\nwith the `--cache-mode` flag. \n\n```\ngcloud compute backend-services (create | update) BACKEND_SERVICE_NAME\n --cache-mode=CACHE_MODE\n``` \n\n```\ngcloud compute backend-buckets (create | update) BACKEND_BUCKET_NAME\n --cache-mode=CACHE_MODE\n```\n\nReplace \u003cvar translate=\"no\"\u003eCACHE_MODE\u003c/var\u003e with one of the following:\n\n- `CACHE_ALL_STATIC` (default): Automatically caches [static\n content](/cdn/docs/caching#static). Responses that are\n marked as uncacheable (`private` or `no-store` directives in\n `Cache-Control` response headers) aren't cached. To cache dynamic content,\n the content must have\n [valid caching headers](/cdn/docs/caching#cacheability).\n\n- `USE_ORIGIN_HEADERS`: Requires the origin to set\n [valid caching headers](/cdn/docs/caching#cacheability) to\n cache content. Responses without these headers aren't cached at Google's\n edge and require a full trip to the origin on every request, potentially\n impacting performance and increasing load on the origin server.\n\n- `FORCE_CACHE_ALL`: Caches all content (that is, successful responses),\n ignoring any `private` or `no-store` directives in `Cache-Control`\n response headers. This might result in caching of private, per-user\n (user identifiable) content. Only enable this on backends that\n are not serving private or dynamic content, such as Cloud Storage\n buckets. Don't enable this on backends that are serving private or dynamic\n content.\n\n### API\n\nFor backend buckets, use the\n[`Method: backendBuckets.insert`](/compute/docs/reference/rest/v1/backendBuckets/insert) or\n[`Method: backendBuckets.update`](/compute/docs/reference/rest/v1/backendBuckets/update)\nAPI call.\n\nFor backend services, use the\n[`Method: backendServices.insert`](/compute/docs/reference/rest/v1/backendServices/insert) or\n[`Method: backendServices.update`](/compute/docs/reference/rest/v1/backendServices/update)\nAPI call.\n\nUse one of the following API calls: \n\n```\nPOST https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/backendBuckets\nPUT https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/backendBuckets/BACKEND_BUCKET\nPOST https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/backendServices\nPUT https://compute.googleapis.com/compute/v1/projects/PROJECT_ID/global/backendServices/BACKEND_SERVICE\n```\n\nAdd the following snippet to the JSON request body: \n\n```\n\"cdnPolicy\": {\n \"cacheMode\": (CACHE_ALL_STATIC | USE_ORIGIN_HEADERS | FORCE_CACHE_ALL)\n```\n\nReplace \u003cvar translate=\"no\"\u003eCACHE_MODE\u003c/var\u003e with one of the following:\n\n- `CACHE_ALL_STATIC` (default): Automatically caches [static\n content](/cdn/docs/caching#static) if the origin does not set\n [valid caching headers](/cdn/docs/caching#cacheability). Responses that\n are marked as uncacheable (`private` or `no-store` directives in\n `Cache-Control` response headers) aren't cached. To cache dynamic content,\n the content must have [valid caching headers](/cdn/docs/caching#cacheability).\n\n- `USE_ORIGIN_HEADERS`: Requires the origin to set [valid caching\n headers](/cdn/docs/caching#cacheability) to\n cache content. Responses without these headers aren't cached at Google's\n edge and require a full trip to the origin on every request, potentially\n impacting performance and increasing load on the origin server.\n\n- `FORCE_CACHE_ALL`: Caches all content (that is, successful responses),\n ignoring any `private` or `no-store` directives in `Cache-Control`\n response headers. This might result in caching of private, per-user\n (user identifiable) content. You should only enable this on backends\n that are not serving private or dynamic content, such as\n Cloud Storage buckets."]]
