52zhaoyue.cn

What It Is

珊瑚海 (52zhaoyue.cn) is a personal blog for computer science learning notes, with the site title “Don't waste our life.” Based on the crawled content, it appears to be built with Hexo and has a clear focus: documenting the author’s study notes on Linux, Python, databases, testing environments, environment setup, networking fundamentals, and related topics. The site contains 156 posts, 55 tags, 9 categories, and roughly 182,300 Chinese characters in total.

Core Features

The site offers the typical features of a static blog, including a homepage article feed, categories, archives, tags, a timeline, external links, an About page, and local search powered by hexo-generator-search. In terms of content, its Linux and Shell articles are relatively concentrated, covering topics such as Shell functions, data and signals, scripting basics, permission systems, and package installation, making it suitable for reviewing foundational knowledge. Tags include common development, testing, and operations keywords such as Docker, Kubernetes, Nginx, Mysql, Redis, Django, Jmeter, and Postman.

Pricing

There is no visible paywall, membership subscription, course sales, or advertising monetization. Overall, it is a free, publicly accessible personal knowledge-notes site.

Pros and Cons

The strengths are its clear structure, lightweight pages, and complete category/tag organization. Many articles are arranged in a “background — content” format, which is helpful for beginners who want to quickly understand concepts or review commands. The site also states in its announcement that the content comes from online sources and books, and that the owner can be contacted for removal in case of infringement, which is a relatively transparent stance.

The downsides are also apparent: the latest posts are mostly from 2020, suggesting the site has not been updated for a long time. Technical articles are strongly affected by operating system and software versions, so some content may now be outdated. In addition, the content consists of personal learning notes rather than a systematic tutorial series. It lacks practical projects, code repositories, a correction mechanism, and author-credential backing, so its depth and authority are limited.

Who It’s For

It is suitable for beginners learning Linux, Shell, Python, databases, and testing tools, as well as users looking up basic commands or concept explanations. If you are using it for production-environment decisions, complex troubleshooting, or technology selection for newer versions, it is best to cross-check with official documentation and more frequently updated technical communities.

Access From China

The domain is .cn, and the content is a Chinese static blog. No core services were found that require a proxy to access, so it should be directly accessible from mainland China. Overall rating: 6/10. It has reference value as personal notes, but its freshness and level of systematization are average.