HTTP/3

Content delivery networks and global performance A content delivery network (CDN) places copies of your files on servers around the world. When a user requests a page, the CDN serves assets from the edge location closest to that user. This shortens travel distance, reduces round trips, and helps pages load faster. The result is better experiences for visitors, regardless of their location or device. CDNs are useful for blogs, storefronts, and apps alike. ...

How Content Delivery Networks Speed Up Global Access Content Delivery Networks (CDNs) are networks of servers placed in many locations worldwide. They store copies of common files, such as images, CSS, and JavaScript, so visitors load from a nearby server. This proximity cuts travel distance, lowers latency, and speeds up page rendering. CDNs also protect your site during traffic spikes by spreading the load across many servers instead of a single origin. For a global audience, this approach improves both speed and reliability, even on slower connections. ...

Global CDNs: Reducing Latency Across Borders Global CDNs place many edge servers around the world. When a user requests a file, the CDN serves it from the closest point of presence (PoP) rather than reaching back to the origin. This edge caching brings content nearer to people and usually shortens the time to first byte and the overall page load. With a broad network, a site feels fast in Europe, North America, and parts of Asia, even during busy periods. ...

Content Delivery Networks: Speeding Up Global Web Experiences CDNs store copies of your site assets in many locations around the world. This arrangement makes pages load faster and feel smoother for visitors, no matter where they are. A CDN helps with images, CSS, JavaScript, and videos. It also adds resilience during traffic spikes and offers security features such as DDoS protection and TLS termination. How a CDN works When a user requests a resource, the request goes to the nearest edge server. If the resource is cached there, it is sent immediately. If not, the edge server fetches it from the origin server, stores a copy, and serves it to the user. This reduces travel distance, lowers latency, and distributes the load across many servers. The DNS system also helps by steering the user to a nearby Point of Presence (PoP). Cache-control headers tell edges how long to keep a file. Some CDNs support origin pull, where content is brought to the edge only when needed, and then cached. ...

Communication Protocols: From TCP/IP to Modern Standards Data moves in packets guided by rules called protocols. The core is TCP/IP, built to connect networks and enable routing. IP handles addressing and delivery routes; TCP ensures reliable delivery, while UDP offers speed with lighter guarantees. Together with ICMP and ARP, these basics let devices talk across the global network. Over time, applications needed new patterns, driving a family of modern standards that work on top of the same stack. ...

Core Networking Protocols: TCP/IP, UDP, and Beyond The Internet runs on a family of rules called protocols. The most important one is TCP/IP. TCP handles reliable delivery, while IP does the actual addressing and routing. Together, they let data move from your computer to a server across the world. Understanding TCP/IP TCP is a connection oriented protocol. It creates a path between two devices, checks that data arrives, and can resend lost packets. It also sorts packets so they arrive in the right order and manages how fast data travels to avoid congestion. IP focuses on locating devices: IP addresses and ports tell data where to go and how to reach the right application. A common idea is the 4-tuple: source and destination IP addresses plus source and destination ports. This toolbox underpins email, web pages, and many apps, in IPv4 and the newer IPv6. ...

Global Content Delivery: Strategies for Speed and Reach Global content delivery means moving data closer to users and simplifying how it travels across networks. When pages load quickly, visitors stay longer, convert more, and return later. The aim is speed, reliability, and a smooth experience for people anywhere. Begin with a Content Delivery Network to cache static assets near users. A CDN reduces distance, cuts round trips, and handles traffic spikes. Pair it with image and video optimization that shrink sizes without hurting quality. ...

CDN Strategies for Global Performance A CDN moves content to edge servers near users. This reduces round trips, lowers latency, and helps pages load faster for visitors around the world. For a global audience, you need a clear plan that covers caching, routing, asset quality, and visibility. The following practical strategies work for most sites, from small apps to large storefronts. Multi-CDN and Intelligent Routing Using more than one CDN can increase reliability and reach. Route users to the closest edge and healthiest nodes with regular checks. You can run a primary CDN with a backup, or a smart switch based on geography or observed performance. In practice, this reduces single points of failure and smooths traffic during regional outages. ...

Content delivery networks and fast web experiences A content delivery network (CDN) places copies of your site and assets on servers around the world. When a user visits, the browser downloads files from a nearby server instead of the origin. This reduces latency and helps pages load faster, even for visitors far away. Fast experiences matter. They affect how people read, shop, and trust a site. CDNs also boost reliability by spreading traffic across many locations and handling traffic spikes. They offer edge caching, image optimization, and secure delivery close to users. ...

Content Security and Delivery for High Traffic Sites High traffic sites face two big challenges: security and fast delivery. A well implemented Content Security Policy (CSP) reduces risks from cross-site scripting and data leaks, while a strong delivery setup keeps pages responsive under load. The goal is to make the policy strict by default and only relax it where necessary, then monitor for any blocked resources. Start with a clear CSP. Use nonce or hash based scripts, limit sources, and report violations to a central service. Example: Content-Security-Policy: default-src ‘self’; script-src ‘self’ https://cdn.example.com; style-src ‘self’ https://fonts.googleapis.com; img-src ‘self’ data:; connect-src ‘self’; font-src ‘self’ https://fonts.gstatic.com; report-uri https://your-report-endpoint/csp. This is a guideline; adjust to your domains and use a reporting endpoint to learn which sources are blocked. ...