What is CDN?
The full name of CDN is Content Delivery Network, which is content distribution network. The popular understanding of CDN is website acceleration and CPU load balancing, which can solve problems such as slow website opening speed caused by cross-operators, cross-regions, low server load capacity, too little bandwidth, etc. Its purpose is to enable users to obtain the required content nearby, solve the congestion situation of the Internet network, make content transmission faster and more stable, and improve the response speed of users' access to websites.
The content distribution network (CDN) business refers to the use of node server groups distributed in different areas to form a traffic distribution management network platform to provide users with decentralized storage and caching of content, and based on dynamic network traffic and Load conditions, distribute content to fast and stable cache servers, improve user content access response speed and service availability services.
Controlling delay is undoubtedly an important indicator of modern information technology. The purpose of CDN is to reduce resources as much as possible to ensure the continuity of information under forwarding, transmission, link jitter, etc. CDN is a technology that is very effective in reducing latency. Today's CDN services are also more diversified, such as security protection, package services for different industries, etc.
In a simple sentence, the principle of CDN is to cache content near the end user.
What is a CDN license?
CDN license is a CDN business license, referred to as CDN license. On March 1, 2016, the "Telecommunications Business Classification Catalog (2015 Edition)" was officially implemented. The CDN business license is the first type of value-added telecommunications business license, classified B12, and the business is content distribution network business.
Approval agency: Ministry of Industry and Information Technology (provincial network certificates are approved by the Provincial Communications Administration)
Audit time: 90 working days
Annual inspection requirements: 1-3 per year In March, the certificate-holding unit submits annual inspection materials, which are jointly reviewed online by the ministry and province. From April 1st to May 31st every year, the annual inspection and rectification, annual inspection results announcement, annual inspection sealing and other related work are completed.
Validity period: 5 years