Shulou(Shulou.com)06/03 Report--

Content distribution network (Content Delivery Network, referred to as CDN) is a distributed network, which is established and covered on the bearer network, and is composed of server groups of edge nodes distributed in different areas. CDN shares the pressure on the origin server, avoids network congestion, ensures that the distribution of website content is accelerated in different regions and different scenarios, and improves the speed of resource access. Many users will be more concerned about the billing method of CDN in the process of actually using cdn. I'll talk to you briefly today.

What are the charging methods for cdn? At present, many cloud service providers generally charge by traffic and purchase resource packages for cdn acceleration services.

For example, the traffic of Aliyun CDN origin-pull OSS is billed for the outflow, and the outflow of traffic from that product will be billed by which product. Therefore, when CDN origin-pull obtains resources from OSS, the traffic flows from OSS to CDN. This part of the traffic is not charged by CDN, but is billed by OSS.

The cdn/ site-wide acceleration package can be deducted only when the "bill by traffic" is activated. The deduction order of multiple cdn/ site-wide acceleration bundles is as follows: according to the expiration time of cdn/ site-wide acceleration bundles, the first expired bundles are deducted first.

Sometimes there are still some fees after users stop using CDN service, which is mainly caused by the following two reasons:

1. Because some users' LocalDNS servers have a cache, if the cache in the customer's LocalDNS server does not expire after the CDN service is disabled, LocalDNS will also resolve the request to access the disabled CDN domain name to the CDN node, resulting in a small amount of CDN traffic billing.

two。 Some download software also have LocalDNS cache. Before this part of the cache expires, download software will also resolve requests for access to disabled CDN domain names to CDN nodes, resulting in a small amount of CDN traffic billing.

The above is an introduction to the charging method of cdn. The virtual host enjoys Baidu's massive CDN node resources for free and high-speed CDN, making the website access as smooth as a local area network. Virtual host product link https://www.yisu.com/cloud/

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