The Easiest Way to Determine if a Website Uses CDN Acceleration_Recommended Free CDN Services

在Build your own websiteWhen it comes to website optimization, you must have heard aboutCDN Acceleration, so how to determine if a website uses CDN acceleration? This article introduces a simple method to test whether a website uses CDN acceleration and8 free CDN acceleration service providers。

Easily identify CDN using webmaster tools

When building a website, you will definitely come into contact with webmaster tools. If you have never used webmaster tools, then you are definitely not a qualified webmaster. Below is how to use webmaster tools to test whether a website uses CDN service, as shown in the figure:Open the webmaster tools ping, then enter the website URL you want to test, and you will know whether the website uses CDN service by looking at the test results.Webmaster tools address

What is CDN acceleration?

CDNThe full name is Content Delivery Network, which is a content delivery network. CDN is an intelligent virtual network built on top of the existing network infrastructure. It relies on edge servers deployed in various locations and uses functional modules such as load balancing, content distribution, and scheduling from the central platform to allow users to obtain the required content from nearby locations, reducing network congestion and improving user access response speed and hit rate. The key technologies of CDN mainly include content storage and distribution technologies. In simple terms, it means that the data on your website is copied to many servers in different regions. When visitors access your website, they will automatically read the content from the server closest to them, so the speed will be faster than reading directly from your website server.

What are the free CDN acceleration services?

Tencent Cloud CDNOfficial website:https://cloud.tencent.com/product/cdnNew users will receive an experience package with 10G traffic per month.Qianxin Website Guard Official website:https://wangzhan.qianxin.com/Previously known as 360 Website Guard, providing free website acceleration and protection services.Baidu Cloud Acceleration Official website:https://su.baidu.com/Free users can also use SSL acceleration now, which was not possible before. Naibabiji currently uses this service, with 10G free traffic per day.UPYUN CDN Official website:https://www.upyun.com/products/cdnThe image files of Naibabiji are stored on UPYUN cloud storage. Free users get 10G traffic per month. Tutorial:Tutorial on Using Upyun to Speed Up WordPress Websites_New Plugin Version Cache Moment Official website:https://www.cachemoment.com/The experience version offers 10G traffic per month and 100,000 HTTPS requests.Qiniu Cloud CDN Official website:https://www.qiniu.com/products/fusion10G free traffic per month, but if you want to use HTTPS CDN acceleration, additional charges apply.Cloudflare Official website:https://www.cloudflare.com/It is the CDN service provider with the largest user base. Many websites abroad use it, and many users with overseas servers in China also use it. However, if your website's users are primarily in China, Naibabiji does not recommend using it because their CDN servers may have unstable access in some areas within China, potentially causing 'cloud slowdown'.JiasuleOfficial website:https://www.yunaq.com/jsl/A product from Knownsec. The free version provides 3600GB/month of traffic, but does not support free SSL acceleration. It's important to note that most of these free CDN services require website ICP filing for use within China. For use abroad, Cloudflare (CF) is basically the standard choice.