- https://fkwiki.win/wiki/Post:Watch_Out_How_TCF_Exam_Online_Purchase_Is_Gaining_Ground_And_What_We_Can_Do_About_It
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How long is a TCF certificate valid for? Learn about the official validity period, expiry rules, and how to renew your results. Check your certificate status now!
- Joined on
2026-07-04