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Case Study: yoyolink Correctly Cited by Doubao in 7 Days
GNS-GEO fast-launched yoyolink from Hong Kong in one week; Doubao went from "no official website" to correctly citing it in 7 days — verified screenshots.
Anson Ng
6 min read
For mainland customers, the first stop when buying or choosing a supplier is often Doubao (ByteDance). If Doubao answers "this brand is not formally registered and has no official website", the business disappears from the AI answer.
That was exactly the problem for yoyolink (Qiangji Medical)'s GI endoscopy AI-assisted diagnostic system: the product was already registered, yet the AI answer still said "no website, no registration certificate, just an algorithm framework". GNS-GEO solved it in one week — fast-launched from Hong Kong on 25.08.2026, with Doubao's answers fully updated by 31.08.2026.
Result: from wrong description to correct introduction in 7 days
Before launch (26.08), Doubao answered "yoyolink is not an official brand and has no official website":
Seven days after launch (31.08), Doubao correctly describes the official site yoyolink.cn and the system:
Brand name, registration certificate and clinical validation are all corrected:
Why it worked so fast
- AI citation audit: ask Doubao real questions and lock down exactly where the brand was described wrongly
- Hong Kong fast launch: the mainland path needs ICP approval (at least a month); GNS-GEO launched from Hong Kong within one week on 25.08.2026
- AI-friendly content rebuild: restructure product facts into AI-readable, citable form (registration, 1,000+ clinical cases, mainstream endoscope compatibility, on-premise data)
- Daily monitoring and tuning: watch Doubao's answers daily until the wrong description is replaced
For the full method and nine comparison screenshots, see the full blog article.
Summary
AI search is not only Google Gemini — in mainland China, Doubao and similar AI are the customer's first impression. Even a medical device that normally needs ICP approval can go live within a week and have its Doubao answers corrected in 7 days. This case proves: when the brand entity and content structure are right, AI answers can update quickly.
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FAQ
Can a medical device go live quickly without mainland ICP approval?
Yes. GNS-GEO used a Hong Kong fast-launch strategy to give yoyolink's GI endoscopy AI diagnostic system a citable official website within one week, then updated Doubao's AI data — without waiting for mainland ICP approval before building AI visibility.
How quickly does Doubao update brand information?
In the yoyolink case, Doubao went from "no official website and wrong brand description" to correctly introducing the official site and system functions within 7 days; the case includes dated real screenshots.
Are there screenshots to verify this case?
Yes. The case includes real before/after Doubao screenshots with dates (26.08 before / 31.08 after) and the queries used, so readers can verify the results directly.