These Terms of Use of YUSIHK (hereinafter referred to as the “Terms”) apply to all entities (including service recipients and their users, hereinafter referred to as the “Users”) that use the services provided by YUSIHK (including but not limited to completed websites, SEO-optimized platforms, supporting management backends, data analysis tools, etc., hereinafter referred to as the “Services”).
3.1 Usage Rights and Restrictions
- Usage rights : After the service recipient pays the full amount, he or she will obtain the “non-exclusive, non-transferable” right to use the service results, which can be used for legitimate business purposes (such as corporate publicity, product sales, user services, etc.). Overseas Chinese users must ensure that their use complies with the laws of their country/region.
- Prohibited Behaviors : Users may not use the Service Results to engage in the following illegal or anti-public moral conduct:
- Illegal activities: such as disseminating pornographic, violent, terrorist, or extremist content, engaging in online fraud, money laundering, smuggling, and infringing upon others’ portrait rights, reputation rights, or intellectual property rights;
- Interference with services: such as attacking or intruding into the website backend, tampering with code or data, or using viruses, Trojans, or other programs to affect the normal operation of the website;
- Violation of SEO service rules: For example, using “black hat techniques” to adjust the website without the service provider’s consent, or deleting optimized content added by the service provider (such as blog posts, keyword links);
- Unauthorized use: such as transferring or selling the website source code to a third party, or using SEO strategies for other websites that are not served by the Company.
- Reservation of Rights : If the user violates the above prohibitions, the service provider has the right to suspend or terminate the right to use the service results (such as shutting down website backend access, stopping SEO data monitoring), and no refunds will be made for any fees collected. If the service provider suffers losses (such as being sued by a third party or brand damage), the user shall bear full liability for compensation.
- Account Creation : If the service results involve account usage (such as website management backend, SEO data viewing platform), the service provider will create an initial account (including username and initial password) for the service recipient. The service recipient must change the password in a timely manner and is fully responsible for the use of the account.
- Security Responsibility : The service recipient must properly keep account information and not disclose it to unauthorized personnel. If the account is compromised and the website is tampered with or data is lost, the service provider will not be held responsible. However, the service provider can provide paid technical assistance (such as data recovery, the fee will be charged based on the actual workload).
- Account cancellation : After the service ends, the service recipient may apply to cancel the account. The service provider will complete the cancellation within 7 working days after receiving the application and delete non-essential data in the account (only retaining backup data that meets legal requirements, such as service agreements and payment records).
3.3 Content Responsibility and Review
- Content Ownership : The copyright of the content published by users on the service results (such as product information, blog posts, and user comments) belongs to the users, but users must ensure that the content is legal, authentic, and does not infringe the rights of third parties.
- Audit Obligation : The service provider is only responsible for the technical functionality of the service and does not proactively review content posted by users (unless required by law or upon receipt of a third-party complaint). Any legal liability resulting from illegal content (such as administrative penalties or third-party lawsuits) shall be borne by the user.
- Complaint handling : If a third party believes that the content posted by a user infringes upon its rights (such as copyright infringement or defamation), it may send a complaint notice to the service provider (identity proof, proof of rights, and a link to the infringing content are required). The service provider will notify the user within 24 hours of receiving the notice and temporarily block the suspected infringing content. The user must submit rebuttal evidence within 7 working days, otherwise the service provider will permanently delete the content.
3.4 Technical support and updates of service results
- Technical Support :
- Free support: Free bug fixing support (such as abnormal page display or unavailable functions) will be provided within 30 days after the website design and development service is completed.
- Paid support: For issues beyond the free period or due to user errors (such as accidental deletion of code or incorrect setting changes), a technical support fee of HK$150-300/NTD/hour will be charged.
- Updates and Upgrades :
- Mandatory Update: If a service has a serious security vulnerability (such as one that may lead to data leakage), the service provider may conduct a mandatory update and notify the user 24 hours in advance;
- Optional upgrades: For website functionality upgrades and SEO strategy optimization (beyond the original service scope), the service provider will provide an upgrade plan and quotation, which will be charged separately after the user confirms.
3.5 Disclaimer and Exemption
- Disclaimer of technical failure : If the service results are temporarily unavailable or the SEO effect fluctuates due to force majeure (such as earthquakes and typhoons), third-party service interruptions (such as hosting provider server failures and telecommunications network interruptions), sudden adjustments to search engine algorithms, and other factors beyond the control of the service provider, the service provider shall not bear liability for compensation, but shall promptly notify the user and do its best to assist in resolving the problem.
- Exemption from indirect losses : The service provider is not liable for compensation for “indirect losses” related to the service, including but not limited to: loss of operating profits, loss of goodwill, loss of opportunity, losses caused by user complaints, etc. It will only reasonably compensate for “direct losses” (such as paid service fees and third-party compensation caused by the service provider’s negligence), and the total amount of compensation shall not exceed the total service fees paid by the user.
3.6 Modification and Effectiveness of Terms
- Right to modify : The service provider may modify these terms based on legal and regulatory adjustments, industry changes, or service upgrades. After the modification, the user will be notified via email, website announcements, etc. If the user continues to use the service results, it will be deemed to have accepted the modified terms.
- Effective Date : These Terms shall take effect from the date the user first uses the service results and shall be valid for the same period as the service period. After the service ends, the terms concerning intellectual property rights, confidentiality, and dispute resolution shall remain valid.
- Entire Agreement : These Terms, together with the Service Quotation, Demand Confirmation, and Supplemental Agreement, constitute the entire agreement between the parties regarding the use of the service results. In the event of any conflict, the later signed document shall prevail.

YUSI | Senior Technical SEO Consultant
With 7 years of full-stack development experience, I specialize in integrating technical development with SEO strategies to solve complex website optimization challenges and provide high-level technical SEO consulting services.
Core Expertise
Website Architecture: Designing search engine-friendly structures that balance crawlability with user experience
Performance Optimization: Fine-tuning technical parameters to enhance page loading speed and overall performance, aligning with search engines’ “fast experience” requirements
Data Integrity: Ensuring accurate data analysis to provide a solid foundation for SEO decision-making
Certifications & Technical Stack
Authorized Certifications: Google GA4 2025 Certification, Google Search Professional (PE) Certification
Technical Proficiencies: Expertise in React Native, Next.js, Node.js, PHP, enabling deep website optimization and development of SEO-friendly digital assets
Core Mission
To deliver “technically robust, search-engine optimized, and sustainably growing” SEO solutions for businesses. Helping clients secure top positions in Google search results, achieve continuous organic traffic growth, and build competitive digital barriers.
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