Blog / Understanding Baidu's Algorithm Updates: What You Need to Know

Understanding Baidu's Algorithm Updates: What You Need to Know

Baidu, China’s leading search engine, frequently refines its algorithms to ensure users find relevant, high-quality results. 

Although detailed, post-2021 information on these updates is limited, existing trends reveal a clear pattern: Baidu rewards websites that prioritize user experience, valuable content, speed, and compliance with its guidelines and penalizes those using manipulative tactics or offering poor user experiences.

So, what do you need to know about these algorithm updates to stay on top of your Baidu SEO game?

TL;DR: Baidu’s algorithm updates emphasize user-centric content, site performance, and adherence to local guidelines. Updates like Breeze and Thunder target low-quality content, slow-loading pages, and black-hat SEO practices. To stay competitive, focus on producing unique, valuable Chinese-language content, improving load times (with tools like Chinafy), and meeting Baidu’s quality standards.

If you’re targeting Chinese consumers, understanding and adapting to these algorithm changes helps you maintain visibility and ranking well on Baidu’s search results.

Why Baidu’s algorithm updates matter

Baidu dominates China’s online search market, making it a critical platform for businesses aiming to reach Chinese consumers. Its algorithm updates serve as reminders that user experience, authenticity, and compliance can make or break your SEO efforts. By understanding these updates, you can align your strategies with Baidu’s evolving criteria, ensuring long-term success in a highly competitive environment.

Key Baidu algorithm updates

Below are the major Baidu algorithm updates that have influenced search visibility and site rankings in recent years. While their exact timelines vary, the principles they enforce remain highly relevant.

A. Breeze Algorithm (2017–2021)

Focus: Enhance user experience, especially for download sites.

Key Change: Sites offering low-quality downloads, malware, or intrusive ads face penalties.

What to Do:

Ensure any downloadable content is safe, fast, and easy to access.

Remove harmful or low-value resources.

B. Thunder Algorithm (2017–2021)

Focus: Crack down on manipulative ranking practices.

Key Change: Targets industries historically plagued by deceptive tactics—such as automotive or recruitment—more aggressively.

What to Do:

Use transparent, white-hat SEO strategies.

Avoid keyword stuffing, paid link schemes, or cloaking.

C. Blue Sky Algorithm (2016–2021)

Focus: Filter out low-quality or irrelevant content.

Key Change: Thin, duplicate, or poorly researched pages lose visibility.

What to Do:

Produce well-researched, in-depth content that matches user intent.

Continually update and refine existing pages for better relevance.

D. Hurricane Algorithm (2017–2019)

Focus: Encourage originality.

Key Change: Duplicate content is penalized, pushing publishers to create unique material.

What to Do:

Audit your site for duplicate pages.

Invest in professional translations and localized content creation rather than using direct machine translations.

E. Beacon-Fire Algorithm (2017–2021)

Focus: Stop manipulative browsing tactics.

Key Change: Penalizes sites that hijack back buttons or redirect users unexpectedly.

What to Do:

Simplify navigation and maintain user control.

Ensure a transparent, frustration-free browsing experience.

How Baidu’s updates affect marketers

Content quality reigns top priority:

Low-quality, duplicate, or irrelevant content leads to penalties.

Action step: Produce unique, valuable content that addresses specific user questions, interests, and needs.

User experience matters:

Baidu values fast load times, mobile-friendly designs, and secure hosting (HTTPS).

Action step: Use Chinafy to improve site speed and functionality for Chinese users.

Compliance is non-negotiable:

From avoiding sensitive content to following keyword guidelines, strict compliance with Baidu’s rules protects your rankings.

Action step: Stay updated on Baidu’s policies, avoiding black-hat techniques and spammy link-building.

Optimizing for Baidu in 2024 and beyond

Create high-quality, localized content:

Write in Simplified Chinese and incorporate culturally relevant examples.

Conduct Chinese keyword research to align with local search intent.

Enhance technical performance:

Use Chinafy to ensure your site loads fast and fully, bypassing common performance bottlenecks in the Chinese internet ecosystem.

Build user trust:

Keep navigation clear and intuitive.

Avoid intrusive pop-ups or ads that harm the user experience.

Monitor updates & adjust strategies:

Subscribe to reliable SEO news sources and Baidu’s own guidelines.

Continuously refine your approach based on performance metrics and algorithm insights.


Baidu’s algorithm updates highlight a consistent theme: the search giant values user satisfaction, relevant content, and compliance. By creating original, culturally tuned content, optimizing your site’s speed and accessibility, and adhering strictly to Baidu’s guidelines, you can maintain and improve your rankings.

Next steps:

Audit your site for loading times, duplicate content and technical issues.

Focus on localizing content to meet the needs of Chinese users.

Consider partnering with a service like Chinafy to ensure your site performs optimally in China’s unique internet environment.

Contact us to learn how Chinafy can enhance your site’s speed, functionality, and compliance with Baidu’s latest standards, ensuring you stay visible and competitive in the world’s largest online market.

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