jsencrypt - Libraries - cdnjs - The #1 free and open source CDN built to make life easier for developers (2024)

FAQs

What is CDNJS used for? ›

cdnjs is a free and open-source software (FOSS) content delivery network (CDN) hosted by Cloudflare. As of May 2021, it serves 4,013 JavaScript and CSS libraries, which are stored publicly on GitHub.

A CDN is a Content Delivery Network. These are file hosting services for multiple versions of common libraries. They are usually highly performant and offer location cached files so no matter where your users are, they receive the files from geo locations close to them.

Today, almost all websites and applications rely on a CDN to help serve content to their users. Web applications use CDNs largely because they offer four important benefits: better performance, increased reliability, cost savings, and resilience against cyber attacks.

By using a CDN, you are essentially trusting a third-party provider to deliver your JavaScript libraries safely and correctly. However, there is always a chance that the CDN provider may be hacked, compromised, or malicious, and inject malicious code or malware into your JavaScript libraries.

The following is an example of a typical CDN caching process: A web server in Chicago hosts static web content that a website visitor located in Washington, D.C., requests. Once the origin server in Chicago receives the request, it sends a response to the website visitor.

The CDN Finder tool analyzes the HTML of a web page. If that web page has a video element, CDN Finder will see the URL in that element's source and identify the CDN. However, if the web page has video that is initialized by JavaScript, CDN Finder will not detect it.

A content delivery network (CDN) is a geographically distributed group of servers that caches content close to end users. A CDN allows for the quick transfer of assets needed for loading Internet content, including HTML pages, JavaScript files, stylesheets, images, and videos.

A CDN improves efficiency by introducing intermediary servers between the client and the website server. These CDN servers manage some of the client-server communications. They decrease web traffic to the web server, reduce bandwidth consumption, and improve the user experience of your applications.

Security and privacy. CDN providers profit either from direct fees paid by content providers using their network, or profit from the user analytics and tracking data collected as their scripts are being loaded onto customers' websites inside their browser origin.

What is the use case of CDN? ›

One of the key benefits of using a CDN is its ability to reduce page load time. This is crucial in the e-commerce industry, where latency can directly impact user experience and conversion rates. A CDN achieves this by caching content near end users, significantly improving load times. But it's not just about speed.

CDN is always better than no CDN. Simply because performance/speed and availability will improve in any case. If your traffic is small and performance is not critical to your online business, you can always choose a free solution like cloudflare.