Web-Infrastructure

Content Delivery Networks: Speed and Availability Worldwide Content Delivery Networks (CDNs) speed up access to web content by placing copies of files in many locations around the world. When a user visits your site, the request is served from a nearby server instead of traveling all the way to your origin. This small change can cut travel distance, reduce congestion, and improve reliability during traffic spikes or regional outages. A CDN also helps sites handle sudden bursts of visitors without buying extra hardware. ...

Content Delivery Networks for Global Speed Content Delivery Networks (CDNs) move copies of your site or media closer to users. By placing servers in many regions, a CDN reduces the distance data must travel. That usually means faster page loads, smoother video, and less strain on your origin server. Most CDNs store static content—images, stylesheets, scripts, and media—on edge servers. When a visitor requests a file, the nearest edge node serves it. If the item is not cached locally, the edge server fetches it from your origin and caches it for the next request. This edge caching happens automatically, so you can focus on producing good content. Dynamic content can also be accelerated through smart routing and on-demand optimization. ...

Content Delivery Networks Speeding Up Global Websites Global visitors expect fast pages from anywhere. Content Delivery Networks (CDNs) place copies of site assets on many servers around the world. When a user requests a page, the CDN routes the request to the nearest edge server, which serves images, CSS, scripts, and other files quickly. The origin server remains the source of truth, but the CDN caches popular content to reduce latency and handle traffic spikes. ...

Domain Name System Demystified for Builders The Domain Name System (DNS) is the Internet’s phone book. It lets browsers reach apps with names like example.com instead of a string of numbers. For builders, DNS is a quiet ally that affects reliability, speed, and how you scale services. Understanding a few actors helps. You have recursive resolvers (the helpers your device talks to), root servers, top‑level domain (TLD) servers, and authoritative servers for each zone. Each piece answers a piece of the puzzle, moving from a name to a set of numbers that a computer can use. ...