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
Building a website inevitably involves using webmaster tools. If you've never used them, you're definitely not a qualified webmaster.
Below is how to use webmaster tools to test whether a website uses CDN services, as shown in the figure:
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.
What is CDN Acceleration?
CDNCDN stands for Content Delivery Network, which is a content distribution 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 through functions such as load balancing, content distribution, and scheduling on the central platform, it allows 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.
Simply put, your website data is copied to servers in many different regions. When visitors access your site, they automatically read content from the server closest to them, making it faster than reading directly from your server.
What are the free CDN acceleration options?
Tencent Cloud CDNOfficial website:https://cloud.tencent.com/product/cdn
New 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/cdn
Naibabiji's image files are stored on Upyun Cloud Storage, with 10GB of 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/fusion
10GB 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 the free CDN services above require website ICP filing for domestic use in China, while for overseas use, Cloudflare is generally the choice.