Web Performance

Content Delivery Networks: Speeding Up Global Websites Content Delivery Networks (CDNs) are groups of servers spread around the world. When a user visits your site, the CDN tries to serve most files from a nearby edge location instead of reaching back to your origin every time. If the file is already cached on that edge, it travels a short distance and loads quickly. If not, the edge fetches it from your origin and stores a copy for next requests. This simple approach cuts network hops, lowers bandwidth from the origin, and helps pages stay fast even during traffic surges. ...

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. ...

Content Delivery Networks for Global Speed Content Delivery Networks (CDNs) place copies of your content on servers around the world. When a user visits your site, the CDN serves assets from the closest edge location, reducing distance and round-trip time. This boosts perceived speed and helps keep visitors engaged, even if they are far from your origin server. CDNs do more than store files. They manage caching rules, compression, and secure delivery. They use edge servers, smart routing, and health checks to choose the best path. If content is not in cache, the CDN fetches it from the origin and stores a copy for next time. That reduces traffic to your main server and helps you handle traffic spikes. ...

Content Delivery Networks for Global Speed A Content Delivery Network, or CDN, places copies of a site’s assets in many servers around the world. When a visitor loads a page, the CDN serves static files like images, scripts, and styles from the closest edge server. This reduces latency and helps pages load faster, even for users far from the origin. Latency grows with distance and network hops. A direct fetch from a central server can add delay, especially on mobile networks. CDNs cut this delay by shortening the path and using cached copies. Modern CDNs also use smarter routing to avoid congested routes and to balance load across regions. Newer protocols like HTTP/3 further reduce startup time by better multiplexing connections and reducing handshakes. ...

Content Delivery Networks for Global Apps Content Delivery Networks (CDNs) help apps reach users quickly by bringing content closer to them. For global apps, latency is a constant concern. A CDN places many servers around the world and caches copies of files like images, scripts, and videos. When a user requests a file, the CDN serves it from the nearest location, often in milliseconds, instead of traveling all the way to the origin. ...

CDNs and Edge Delivery: Global Performance in Focus Global audiences expect fast, reliable access to content no matter where they are. Content delivery networks (CDNs) and edge delivery bring the site closer to users by placing copies of assets in many locations around the world. The result is lower latency, faster page loads, and a better user experience. This article looks at what makes edge delivery effective and how to measure it. ...

Web performance budgets and optimization Web performance budgets give teams a concrete limit to aim for. They translate speed goals into numbers we can measure and enforce. A budget keeps the development process focused on user experience, not just features. By setting limits on payload size, number of requests, and time to interactive, you can prevent regressions and guide improvements across design, frontend, and backend work. What is a performance budget? A performance budget is a small set of rules that restrict what a page can load. Typical dimensions are: ...

Content Delivery Networks: Speed and Availability Worldwide A Content Delivery Network (CDN) is a global system of servers that store copies of your website content. When a user loads your page, the CDN tries to serve that content from a location near them. This shortens the distance the data must travel and reduces delay, so pages load faster even for visitors far from your origin server. How it works: edge servers cache files such as images, styles, and scripts. When a user requests a file, the edge server serves a nearby copy. If the content changes, you can purge or update the cache from the origin. Intelligent routing, based on the user’s location, selects the best edge node, and some providers offer dynamic content acceleration for API calls and personalized pages. ...

Content Delivery Networks for Global Performance Content delivery networks (CDNs) place copies of your web files in many locations worldwide. When a user visits your site, the nearest edge server serves the request, cutting travel time and speeding loads. Edge caching covers static assets like images, CSS, and JavaScript. The origin holds the master copy; the CDN stores fresh copies according to cache-control headers or a TTL. If content is missing or stale, the edge fetches it from the origin and updates its cache. ...

Content Delivery Networks: Speeding Up Global Access Content delivery networks (CDNs) place copies of your content closer to users. They are a practical way to speed up access for websites, images, and videos. By serving data from edge locations around the world, CDNs reduce distance, lower latency, and improve reliability. A CDN works by caching static parts at edge servers and by smart routing of requests. When a user asks for a page or asset, the system serves it from the nearest edge location. If the item is not in cache, the CDN fetches it from your origin, stores a copy at the edge, and serves future requests from that location. Cache rules determine how long a copy stays fresh, and you can purge content to reflect updates quickly. ...