Have you ever experienced difficulty accessing a website when you wanted to click on it? Or perhaps encountered delays and buffering when trying to watch a video on a streaming platform? Well, that's where CDN (Content Delivery Network) comes into play, and today we're going to talk about BytePlus CDN services.
The Savior for Slow Websites and Videos: BytePlus CDN
CDN, short for Content Delivery Network, is a network of interconnected servers that accelerates web page loading speed by caching content closer to users. So how does BytePlus CDN work? BytePlus operates a geographically distributed network of edge servers that connect to the origin server. When CDN is enabled, edge servers cache copies of content from the origin server and store them in edge servers located close to the user's point of presence (POP).
When a user attempts to access a website hosted in a different region, and the website owner uses BytePlus CDN, the user's web browser sends a request to the local DNS to determine the CNAME configuration via DNS resolution. The local DNS then returns the IP address of the nearest edge server to the user, which the web browser uses to send an HTTP GET request. The edge server then delivers the requested content to the user. By replacing the origin server, edge servers significantly reduce latency and improve website performance, ensuring users don't have to deal with frustrating loading circles when accessing websites.
BytePlus CDN 運作流程
(圖片取自BytePlus官方文檔：https://docs.byteplus.com/zh-CN/byteplus-cdn/docs/overview-of-byteplus-cdn#How%20it%20works)
Advantages of Using BytePlus CDN
BytePlus CDN offers four major advantages:
Excellent User Experience: BytePlus has developed caching software to enhance website performance for web and mobile users. With its multi-layer caching architecture, BytePlus CDN can transmit various types of data, including static images, streaming media, and large files, at faster speeds. Additionally, BytePlus CDN supports modern protocols, including HTTP/HTTPS and QUIC.
Strong Performance and Flexibility: BytePlus has developed resource planning and real-time resource scheduling systems to deliver user requests and service content more reliably. Furthermore, BytePlus CDN collaborates with renowned Chinese mobile network operators such as China Mobile, China Telecom, and China Unicom. It strategically places cache hits to improve data delivery speed.
High Security: BytePlus CDN ensures end-to-end secure network transmission through comprehensive HTTPS anti-hijacking and anti-leeching measures. It supports access control through referrer blocklists and allowlists, IP blocklists and allowlists, URL authentication, etc.
Comprehensive Monitoring: BytePlus CDN combines monitoring and logging capabilities to provide detailed metrics on daily, weekly, and monthly data transmission, bandwidth, requests, etc. Detailed request logs are also available for further analysis.
Maximizing the Benefits of BytePlus CDN
Now that we understand the content and advantages of BytePlus CDN, how can we optimize its services for best performance? Let's take a look at the solutions provided by BytePlus officials:
To speed up the delivery of images, text, and web pages, consider the following configurations:
- Cache configuration
- Use HTTPS Implement intelligent compression
- Configure Cross-Origin
- Resource Sharing (CORS)
To accelerate video transmission, consider the following configurations:
- Cache configuration
- Use HTTPS
- Origin prefetching
- URL authentication
To speed up file downloads, consider the following configurations:
- Cache configuration
- Use HTTPS
- Origin prefetching
Source：〈BytePlus CDN〉
https://docs.byteplus.com/en/byteplus-cdn/docs/overview-of-byteplus-cdn