C Zhidao
A developer AI search product co-developed by CSDN and external partners, covering AI Q&A and dialogue, file analysis, and code generation. It also provides in-depth thinking and code analysis, and the site also includes entrances for homework, interviews, etc.
Updated: 2026-10-26
What is C Zhidao?
C knows is an AI product co-developed by CSDN and external partners. Its official website positions itself as "the AI search engine of choice for developers", which is the title of its search results page. It does not focus on general small talk but on development-related questions: CSDN's technical content ecosystem makes it more aligned with the actual questioning styles of Chinese developers, such as how to solve errors, how to use a certain API, and why this piece of code reports an error.
Who is it for?
- Chinese developers looking up error solutions and API usage, hoping for answers that align with the domestic technical ecosystem and version status.
- Students and newcomers who need to read code can paste incomprehensible code snippets into it for interpretation.
- Programmers preparing for interviews use the Interview Tool and AI Q&A to go over common interview questions and project experiences.
- For students working on course assignments and graduation design projects, they can use document analysis to sort out requirements and code generation to build the initial structure.
Key features
7AI Q&A and Dialogue
According to the official website description, it can efficiently complete AI Q&A and AI dialogue, covering technical questions in daily development.
File Analysis
You can upload files for analysis, processing common materials such as requirement documents, error logs, and configuration files.
Code Generation
Directly generates code for development scenarios, aligning with the usage paths of developers on the platform.
Deep Thinking
A "Deep Thinking" mode is available in the chat interface for complex problems that require multi-step reasoning.
Code Analysis
An interface provides a "Code Analysis" entry to interpret code snippets pasted in.
Multiple In-site Entries
Besides AI search, the side navigation also includes sections such as AI Models, AI Assignments, Graduation Projects, Interview Assistant, AI Programming, and Agents, covering various scenarios like coursework, job hunting, and development.
Login & History
The page provides a login entry and a history section, with relatively limited available functions for unlogged-in users.
How to use C Zhidao
- It is clearly stated at the bottom of the page that the content is generated by an AI model and must comply with the CSDN User Service Terms and CSDN Privacy Policy.
- Treat its responses as a source of inspiration rather than authoritative conclusions, and always verify key APIs in the official documentation.
- When asking questions, include the language version, complete error stack, and dependency versions together.
- the quality of the answers will be significantly higher than just pasting a single error message.
- Code analysis is suitable for understanding code written by others.
- Do not use it to judge whether code is secure.
- desensitize confidential code first.
- You can only save your history after logging in.
- For issues that require long-term follow-up, it is recommended to create a new conversation and ask follow-up questions round by round.
- if the answer is inconsistent with the actual error report, ask again with the original error report.
Traffic & popularity
Data month Sep 2026
C Zhidao receives about 244.3K visits per month.
Monthly visits
12 monthsTraffic sources
- Referrals90.8%
- Direct6.5%
- Search1.8%
- Display ads0.7%
- AI assistants0.2%
Top countries
- China90.8%
- United States2.5%
- Hong Kong, China1.9%
- Taiwan, China1.4%
- Singapore0.9%
Estimated from third-party traffic data.
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