A Content Delivery Network (CDN) is, in terms of the primary service it offers, a set of cache servers, placed at various strategic geographical points and containing copies of the same content for distribution to users located nearby. When a user accesses a site without a CDN, they send queries to the server that hosts the site, called the origin server, which may be geographically remote from them. The request then goes through many Internet routes which can be lengthy depending on the distance to be travelled, slow and possibly congested.
The principle of a CDN is to act as an intermediary between users and the host and to issue the content from servers placed in various locations across the world, nearest to the users. For the user, the CDN will behave just as the website would directly. For the host site, it will also behave more or less as a web user would. This usually allows you to implement a CDN solution without touching the host site.
The filling of a cache server is done as the result of a user’s first query: the user requests the content from the CDN which then requests it from the host server, delivers it to the user and caches it. Each new user close to the relay server accesses the content without the CDN needing to ask the origin server for it again, which has the effect of speeding up delivery. In addition to accelerating distribution, the use of a CDN allows you to reduce the use of bandwidth from the host server. This reduction allows you not only to decrease the cost of bandwidth, but also to reduce the risk of overloading the host server and therefore to improve the delivery security of the site.
For sites using a CDN, we talk about CDNised content.
CDN Tech is a French company created in 2004 which used to be a subsidiary of Ecritel for several years before it merged in 2016.
With the acquisition of CDN Tech, Ecritel goes beyond hosting and outsourcing solutions, and offers a high added-value complement: integrating and managing solutions from the main operators of CDN and services of secure distribution of internet, mobile and video content.
With over 13 years of expertise in improving web performance, CDN Tech is the most important independent precursor to CDN integration in the market.
Content acceleration solutions, initially considered as comfort tools, are now a prerequisite for High Availability & High Performance, as well as website security.
The use of the CDN is essential when you want to reach Internet users all over the world, whether for the deployment of sites and web applications or for downloading files. With more than 100,000 points of presence around the world distributed over twenty different operators, the CDN Tech solution allows you to gain performance, regardless of the location.
A performance-based load balancing of CDN networks is realized in real time for an ideal user experience.
In the case of an e-commerce site for example, the response time, that is to say the loading time of the pages, is crucial, and the static contents are very numerous (photos, images, catalogs, videos , white papers, user guides, manuals and more).
However, the farthest the user's location is from the server's hosting place, the longer the response time will be.
The CDN system enables the loading speed to be multiplied as it is placed between the hosting site and your users' location around the world. It caches content when a user requests it, and distributes it in record time, without using hosting servers, making your site much faster. Naturally, a fluid and responsive site multiplies the chances of converting visitors into buyers.
See also the chapter on security: https://ecritel-cn.si-docker.ecritel.net/en/cdn/security/
CDN Tech offers WAF and anti-DDoS protection solutions that make any site faster, more secure and more reliable. While we protect against cyber attacks, you can stay focused on growing your business.
Thanks to its CDN solutions, CDN Tech has attracted numerous European, American and Asian brands and distributors in the retail, luxury goods, transport and tourism sectors, enabling them to optimize their web infrastructure.
points of presence
the distribution of memory-intensive content
the availability of your service
the performance of your infrastructure
Our Content Acceleration Solution is a must for your web, mobile, video, streaming and eCommerce content.