Terms of Service

These Terms apply to all relationships between users and the Site concerning use of the Service.

Some features require account registration. You must keep your registration information accurate and manage your credentials at your own responsibility. The Site is not liable for unauthorized use by third parties.

The Site's content—such as textbooks, questions, and explanations—is created with the help of AI and refined through editorial and quality review, and its accuracy, completeness, or usefulness is not guaranteed. Always verify the final content and passing criteria of certifications and exams with each certification's official information. To the extent permitted by law, the Site is not liable for any damages arising from use of the Service.

Certification names (e.g., GitHub Foundations) are referenced as study material and do not indicate any affiliation with, endorsement by, or approval from the respective rights holders.

You must not engage in the following conduct:

• Acts that violate laws or public order and morals
• Acts that infringe the intellectual property or other rights of the Site or third parties
• Unauthorized reproduction, redistribution, or commercial use of content
• Unauthorized access, spam posting, placing excessive load, or automated bulk access by bots and the like
• Nuisance to other users, defamation, or discriminatory or inappropriate posts

You post comments and other content at your own responsibility. The Site may review posts that are reported or suspected of violating the Terms via a report queue and may hide or delete them as necessary.

The Site may change, add to, or suspend the Service without prior notice to users.

The Site may revise these Terms when it deems necessary. The revised Terms take effect when posted on the Site.

These Terms are governed by the laws of Japan, and any disputes concerning the Service are subject to the exclusive jurisdiction of the courts of Japan.