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

在build your own websiteand optimizing it, you must have heard about usingCDN acceleration, so how can you tell if a website uses CDN acceleration? This article introduces a simple method to test if a website uses CDN acceleration and8 free CDN acceleration service providers。

Easily Identify CDN Using Webmaster Tools

When building a website, you will inevitably come into contact with webmaster tools. If you have never used webmaster tools, then you are definitely not a qualified webmaster. Let's talk about how to use webmaster tools to test if a website uses CDN service, as shown in the figure below:Open the webmaster tools ping, then enter the URL of the website you want to test. You can tell if the website uses CDN service by looking at the test results.Webmaster Tools Address

What is CDN Acceleration?

CDNstands for Content Delivery Network. CDN is an intelligent virtual network built on top of the existing network infrastructure. Relying on edge servers deployed in various locations, through functional modules such as load balancing, content distribution, and scheduling at the central platform, it enables users to obtain the required content from the nearest location, 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 the data from your website is copied to many servers in different regions. When a visitor accesses your website, the content is automatically read from the server closest to them, so the speed is faster than reading directly from your website's server.

What are the free CDN acceleration options?

Tencent Cloud CDNOfficial website:https://cloud.tencent.com/product/cdnNew users receive a trial package with 10GB of traffic per month.Qianxin Website Guard Official website:https://wangzhan.qianxin.com/Previously known as 360 Website Guard, it provides free website acceleration and protection services.Baidu Cloud Acceleration Official website:https://su.baidu.com/Free users can now also use SSL acceleration, which was not possible before. Naibabiji currently uses this, offering 10GB of free traffic per day.UPYUN CDN Official website:https://www.upyun.com/products/cdnNaibabiji's image files are stored on UPYUN cloud storage, with 10GB of free traffic per month for free users. Tutorial:Using Upyun to Accelerate WordPress Websites_New Plugin Tutorial Cachemoment Official website:https://www.cachemoment.com/The trial version offers 10GB of traffic per month and 100,000 HTTPS requests.Qiniu Cloud CDN Official website:https://www.qiniu.com/products/fusion10GB of free traffic per month, but if you use HTTPS CDN acceleration, additional charges apply.Cloudflare Official website:https://www.cloudflare.com/The CDN service provider with the largest user base. Many websites abroad use it, and many using overseas servers in China also use it. However, if your website's users are mainly in China, Naiba 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. Note that most of these free CDN services require website filing for use in China. For use abroad, CF is basically the choice.