Research methods

Every changing claim needs a trail.

Koursea distinguishes verified facts, editorial suggestions, public review signals, and information that still needs confirmation.

Source priority

  1. Government, public agency, transport operator, venue, event organizer, or official business source.
  2. Professional registry or accountable institution.
  3. Reputable reporting used for discovery and context.
  4. Attributable visitor reviews used as experience signals, never as proof of credentials or guaranteed service.

Dates and status

Pages with changing information show publication and last-verified dates. Expired notices are labeled ended or archived. Store hours, prices, interpretation, stock, eligibility, and entry requirements should be confirmed again before a visit.

Place listings

A source-linked place is not automatically recommended. “Source checked” means a named source was reviewed; it does not guarantee quality. Healthcare language support based only on public reviews is labeled as review evidence rather than official confirmation.

External platforms

Koursea uses official pages first, then separates discovery material from evidence. Naver News and blogs may reveal a topic or local visitor context, but changing facts are checked against the originating organization or another primary source. Instagram, Threads, X, YouTube and TikTok posts are linked or embedded from the original platform when individually reviewed; Koursea does not download and republish a creator's media.

External content remains under its platform and creator's control. Koursea does not copy engagement counts, fabricate activity, or imply endorsement without a current, attributable basis.

If primary sources disagree, we describe the conflict or withhold the claim rather than guessing.

Last reviewed: September 8, 2026