- https://waller-cabrera.technetbloggers.de/why-tcf-official-site-is-a-must-at-a-minimum-once-in-your-lifetime
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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
2026-07-03
Updated 2026-07-03 09:24:46 +08:00