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Contact
Found a bug, want to contribute content, or interested in working together? Use the channels below.
Last updated: 2026-10-26
Report a problem
If a tool computes something wrong or a prompt does not work as described, include: the page URL, what you entered, what you expected, and what you got. That is usually enough to reproduce it.
Email: contact@yueser.com (prefix the subject with “[Qiku]”).
Content and rights
If you believe some content infringes your rights, name the specific page and the grounds. For material that comes from an open-source project, please include the relevant licence details.
Response time
This site is maintained by one person; expect a reply within a few business days. For urgent security issues, prefix the subject with “URGENT”.