内容驱动型 Web 应用的内容分发网络 (CDN)
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内容分发网络 (CDN) 是分布在全球各数据中心内的分布式服务器网络，可根据用户的地理位置向用户提供 Web 内容（包括文本、图片、视频和其他资源）。它们可以缩短延迟时间、将流量从源服务器分流并将内容分发到不同位置，从而提高 Web 应用的性能、可伸缩性和可用性。
CDN 对内容驱动的 Web 应用特别有用。由于 CDN 可以缩短网络延迟，因此在使用内容驱动型应用（尤其是带有大型媒体文件的应用）时，它们可以提供更出色的用户体验。CDN 提供可扩缩的基础架构，并且可以在多个边缘服务器之间分发请求。因此，如果一个服务器出现故障，用户可以从其他服务器访问内容。它们通常还提供 DDoS 防护、WAF 服务和 SSL 终止等安全功能。
为内容驱动的 Web 应用使用 CDN
为内容驱动的 Web 应用使用 CDN 时，请选择符合应用要求、地理覆盖面和性能需求的 CDN 提供商。然后，通过提供 DNS 记录、设置源服务器并指定内容传送和缓存偏好设置来配置 CDN 设置。确保实施 SSL/TLS 加密以确保安全；许多 CDN 都提供免费 SSL 证书或允许您上传自己的证书。请执行全面测试，确保资源按预期通过 CDN 分发。查找损坏的链接或资源缺失等问题，并利用分析工具监控内容传送、缓存命中率和用户行为。负载测试可以帮助您评估 CDN 如何处理增加的流量，以及在这些流量高峰期间分发内容的效率。记录您的 CDN 配置、缓存设置和安全政策，以供将来使用或帮助您排查问题。
Google Cloud CDN 可从具有战略意义的边缘位置缓存和传送内容，从而减少 Web 应用的延迟时间。它可以与其他 Google Cloud 服务（例如 Google Cloud Storage、Google App Engine 和 Google Kubernetes Engine）无缝集成，从而简化 Web 应用的设置和管理。对于需要快速可靠地向全球用户分发内容的内容驱动型 Web 应用，此功能特别有用。
许多 CDN 提供商都会根据用量提供定价方案。请务必了解您的流量模式，以便优化费用。
在 web.dev 上详细了解 CDN。
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最后更新时间 (UTC)：2025-07-25。
[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003eCDNs enhance web application performance by reducing latency and distributing content globally through a network of servers.\u003c/p\u003e\n"],["\u003cp\u003eContent-driven web applications benefit significantly from CDNs, as they improve user experience and offer scalability and security features.\u003c/p\u003e\n"],["\u003cp\u003eWhen implementing a CDN, choose a provider based on your needs, configure settings, ensure security, and monitor performance.\u003c/p\u003e\n"],["\u003cp\u003eGoogle Cloud CDN integrates seamlessly with other Google Cloud services, making it a strong choice for content delivery.\u003c/p\u003e\n"],["\u003cp\u003eCDN pricing often varies based on usage, so understanding traffic patterns is key to optimizing costs.\u003c/p\u003e\n"]]],["Content delivery networks (CDNs) distribute web content via servers in diverse locations, improving performance and availability. Key actions for using a CDN include selecting a suitable provider, configuring DNS records and origin servers, and setting caching preferences. Implement SSL/TLS encryption, test content delivery, and monitor with analytics. Load testing assesses traffic handling. Google Cloud CDN, a major provider, integrates with other Google services. Understand your usage to optimize pricing.\n"],null,["# Content delivery networks (CDNs) for Content-Driven Web Apps\n\nA Content delivery networks (CDNs) is a network of distributed servers\nstrategically placed in various data centers around the world to deliver web\ncontent, including text, images, videos, and other assets, to users based on\ntheir geographic location. They enhance the performance, scalability, and\navailability of web applications by reducing latency, offloading traffic from\norigin servers, and distributing content to diverse locations.\n\nCDNs are especially beneficial for content driven web applications. Since CDNs\nreduce network latency, they offer a better user experience when using\ncontent-driven applications, especially those with large media files. CDNs\nprovide scalable infrastructure and can distribute requests across various edge\nservers. Therefore, users can access the content from another server if one goes\ndown. They usually offer security features such as DDoS protection, WAF\nservices, and SSL termination as well.\n\nUse a CDN for Content-Driven Web Applications\n---------------------------------------------\n\nWhen using a CDN for a content-driven web application, select a CDN provider\nthat aligns with your application's requirements, geographic reach, and\nperformance needs. Then configure your CDN settings by providing DNS records,\nsetting up your origin server, and specifying your content delivery and caching\npreferences. Be sure to implement SSL/TLS encryption for security; many CDNs\noffer free SSL certificates or allow you to upload your own. Perform thorough\ntesting to make sure assets are delivered through the CDN as expected. Look for\nissues such as broken links or missing assets, and utilize analytics tools to\nmonitor content delivery, cache hit rates, and user behaviors. Load testing can\nhelp you evaluate how the CDN handles increased traffic and how efficiently it\ndistributes content during these traffic spikes. Document your CDN\nconfiguration, cache settings, and security policies for future use or to assist\nyou when troubleshooting issues.\n\n[Google Cloud CDN](https://cloud.google.com/cdn) is designed to reduce the\nlatency of web applications by caching and serving content from strategically\nlocated edge locations. It integrates smoothly with other Google Cloud services,\nsuch as Google Cloud Storage, Google App Engine, and Google Kubernetes Engine,\nstreamlining the set-up and management of your web application. It is\nparticularly beneficial for content-driven web applications that require fast\nand reliable content distribution to users around the world.\n\nMany CDN providers offer pricing plans based on usage. Be sure to understand\nyour traffic patterns so that you can optimize costs.\n\n[Learn more about CDNs on\nweb.dev](https://web.dev/articles/content-delivery-networks)."]]
