Content Delivery Network
Content Delivery Network (CDN) (also referred to as Content Distribution Network) is a complex Internet infrastructure consisting of edge servers (a group of edge servers is called a Point of Presence - PoP or a Location) and DNS servers.
Edge servers (PoPs)
Edge servers are optimized for maximum throughput across the Internet. They cache your content on ultra-fast SSD drives and deliver it through the most robust networks, ensuring fast and reliable access for your visitors.
With CDNsun, you have full control over your subscribed (enabled/disabled) PoPs, allowing you to customize your CDN services to perfectly match your specific needs. Take a look at our CDN network map to see the available locations.
DNS Servers
DNS servers, along with a redirection algorithm, are core components of every content delivery network. Their role is to resolve CDN domains (e.g., cdn.mycompany.com) to edge server IP addresses closest to your visitors.
How It Works
When a visitor requests content from your CDN URL (e.g., https://cdn.mycompany.com/photo.jpg), our DNS servers redirect them to the nearest edge server. The redirection algorithm selects the edge server with the lowest latency (i.e., the lowest ping) to the visitor. Additionally, the algorithm distributes requests among edge servers with similar latency, a feature known as load balancing.
Our Anycast DNS infrastructure includes DNS servers strategically distributed across the globe.
DDoS Protection
Our content delivery network includes the following features to automatically mitigate certain types of DDoS attacks:
- Connectivity to edge servers is protected by data center-level DDoS mitigation.
- Edge servers have their own built-in DDoS protection.
- Traffic to edge servers is load-balanced across multiple locations, increasing overall network capacity and resilience.
In the event of a large-scale attack (limits vary by region), the affected CDN service may be temporarily suspended, and our support team will notify you.
What are the benefits of using a CDN?
Faster website
With a content delivery network, your website will be significantly faster, and its response time will remain consistent across all regions worldwide.
More page views and lower bounce rate
A faster website enhances customer experience, leading to a lower bounce rate, increased time spent on your site, and more page views.
Better search engine rankings
Search engines like Google and Bing consider website speed an important ranking factor. A faster website improves search visibility, enhances user experience, and can lead to higher rankings.
More new visitors
With higher rankings in Google search results, your website will attract more new visitors.
More conversions and increased revenue
More visitors and an improved user experience lead to higher conversion rates and increased revenue.
What next?
Read about the following topics.