Source standards
For consequential or changing certification facts, About Linux Certification prefers authoritative first-party sources such as certification-provider exam pages, published objectives, official FAQs, policies and documentation. Secondary sources may provide context, but they do not replace first-party evidence when current provider-controlled facts are available.
Quantitative or time-sensitive claims should retain their relevant scope, date and source. Where a fact is likely to change, the site uses explicit verification dates or freshness controls rather than implying that an old fact is permanently current.
Freshness and reverification
High-change facts—including price, exam duration, attempt or retake rules, prerequisites, current software versions, certification validity and renewal policies—are rechecked when the applicable freshness rules require it. Material changes should be corrected in the affected page rather than silently left stale.
Exam-preparation integrity
The site supports legitimate preparation using public exam objectives, provider-published competencies, documentation and original practice exercises. It does not publish exam dumps, braindumps, leaked questions, reconstructed confidential questions or other stolen test material, and it does not imply access to confidential exam environments.
Editorial independence and affiliate monetization
Editorial decisions about what a certification is for, who it may fit, how it compares with another option, and what preparation is appropriate are intended to remain separate from affiliate monetization. A commercial relationship does not justify changing a page's conclusion, suppressing material tradeoffs or forcing an affiliate call to action into a context where it does not belong.
Where an affiliate link is used, the page should identify the destination accurately and disclose the affiliate relationship. See the Affiliate Disclosure.
Corrections
If you identify a factual error, stale provider detail or site problem, contact us by email. Material factual errors are corrected in the affected content and their source or verification context is updated where relevant.
Policy maintenance
Last updated: .