We keep a record of
changes to explanations and criteria.

• Added rationale, inspection methods, decision rules and references to the 36 criteria.
• Documented the review scope, evidence records, unverified items and recheck procedure.
• Added an internal case separating actual website changes from outcomes that have not been measured.
• The added documents and explanations are available in Korean, English and Chinese.

• We retained the 36 items and removed scores, thresholds, and rule fingerprints without publicly available supporting evidence.
• We revised wording that presented a question-and-answer structure as a requirement for search visibility.
• We clarified how to record Confirmed, Needs improvement, Needs verification, and Not applicable.
• We clarified that the self-check does not automatically crawl websites or measure AI answers.
• We provide an illustrative report instead of before-and-after figures from cases without verification data.

Why did this change?

To avoid confusing page readiness with actual search visibility. We also distinguish our internal criteria from search services' official requirements.

• We added self-check results, note copying, and file downloads.
• We improved menus, search, guide filters, and connections between pages.
• We reduced repeated practice introductions and placed relevant official sources in context within the text.
• We aligned the privacy information with how data is actually handled in the browser.