How Weblogic Can Help You Improve Website Speed using a Content Delivery Network (CDN)
A content delivery network (CDN) refers to a geographically distributed group of servers which work together to provide fast delivery of Internet content.
A properly configured CDN may also help protect websites against some common malicious attacks, such as Distributed Denial of Service (DDOS) attacks.
Improving website speed just got easier, but thats not all that a CDN can do. Read on.
Is a CDN the same as a web host?
While a CDN does not host content and can’t replace the need for proper web hosting, it does help cache content at the network edge, which improves website performance. Many websites struggle to have their performance needs met by traditional hosting services, which is why they opt for CDNs.
What are the benefits of using a CDN?
Although the benefits of using a CDN vary depending on the size and needs of an Internet property, the primary benefits for most users can be broken down into 4 different components:
Improving website load times
By distributing content closer to website visitors by using a nearby CDN server (among other optimizations), visitors experience faster page loading times. As visitors are more inclined to click away from a slow-loading site, a CDN can reduce bounce rates and increase the amount of time that people spend on the site. In other words, a faster a website means more visitors will stay and stick around longer.
Reducing bandwidth costs
Bandwidth consumption costs for website hosting is a primary expense for websites. Through caching and other optimizations, CDNs are able to reduce the amount of data an origin server must provide, thus reducing hosting costs for website owners.
Increasing content availability and redundancy
Large amounts of traffic or hardware failures can interrupt normal website function. Thanks to their distributed nature, a CDN can handle more traffic and withstand hardware failure better than many origin servers.
How does a CDN keep a website always online?
Reliability and Redundancy
Uptime is a critical component for anyone with an Internet property. Hardware failures and spikes in traffic, as a result of either malicious attacks or just a boost in popularity, have the potential to bring down a web server and prevent users from accessing a site or service. A well-rounded CDN has several features that will minimize downtime:
- Load balancing distributes network traffic evenly across several servers, making it easier to scale rapid boosts in traffic.
- Intelligent failover provides uninterrupted service even if one or more of the CDN servers go offline due to hardware malfunction; the failover can redistribute the traffic to the other operational servers.
- In the event that an entire data center is having technical issues, Anycast routing transfers the traffic to another available data center, ensuring that no users lose access to the website.
Latency – How does a CDN improve website load times?
When it comes to websites loading content, users drop off quickly as a site slows down. CDN services can help to reduce load times in the following ways:
- The globally distributed nature of a CDN means reduce distance between users and website resources. Instead of having to connect to wherever a website’s origin server may live, a CDN lets users connect to a geographically closer data center. Less travel time means faster service.
- Hardware and software optimizations such as efficient load balancing and solid-state hard drives can help data reach the user faster.
- CDNs can reduce the amount of data that’s transferred by reducing file sizes using tactics such as minification and file compression. Smaller file sizes mean quicker load times.
- CDNs can also speed up sites which use TLS/SSL certificates by optimizing connection reuse and enabling TLS false start.
Data Security – How does a CDN protect data?
Information security is an integral part of a CDN. a CDN can keep a site secured with fresh TLS/SSL certificates which will ensure a high standard of authentication, encryption, and integrity. Investigate the security concerns surrounding CDNs, and explore what can be done to securely deliver content. Learn about CDN SSL/TLS security