The full name of CDN is Content Delivery Network, that is, content distribution network. The popular understanding of CDN is website acceleration and CPU load balancing. The content transmission is faster and more stable, and its purpose is to enable users to obtain the required content nearby, solve the situation of Internet network congestion, and improve the response speed of users visiting websites.
Here is a brief introduction to some free and reliable open source CDNs:
CloudFlare may be the earliest free CDN service for domestic netizens. If your website is visited by users from all over the world, then CloudFlare must be suitable for you. If your website program is Wordpress, the official also provides a special one for WP users. The official plug-in (plug-in search CloudFlare), can be set up at one time, and you can directly view the CDN traffic in the background. To use CloudFlare, you must use CloudFlare's DNS, and some IPs of CloudFlare have been harmonized in China.
Cloud acceleration is divided into free version and paid version. The free version does not support SSL certificates, and overseas websites also support acceleration. Baidu Cloud Acceleration claims that it can accelerate Baidu's indexing, but the effect is not very obvious. Cloud Acceleration also provides free domain name resolution services.
The free version of Cloud Shield does not support SSL. The cache function of Cloud Shield is very powerful. It has acceleration nodes all over the world and fine performance optimization capabilities. After the cache is enabled, the website speed will be significantly improved, and the effect of blocking CC attacks is also very good. good.
CDNJS is a project that provides developers and organizations with popular front-end web development resources through a fast CDN infrastructure, helping code base and framework developers distribute their projects and enhance developers' websites. With an excellent free CDN service, developers can focus on their projects and website development, and no longer need to spend time worrying about how to set up CDN for projects or website resources.
jsDelivr is a public free CDN that provides a stable CDN that can be used on popular websites with huge traffic. There is no bandwidth limit. Anyone can use it completely free of charge. It supports npm, GitHub, and WordPress.
When using a free CDN, there may occasionally be a phenomenon that the website cannot be opened, which is rare, but this is inevitable. Free things will be more or less unstable.
Well, there are tens of millions of resources, and they are also unpredictable. It is easy to hang up if you don’t pay attention at once, so we’d better prepare more free CDN acceleration. The above is the entire content of this article. It provides a total of five relatively stable, fast, The free front-end open source project CDN acceleration service station is for everyone to know and use.