Methodology / データ方針
Yumo.to combines public data, official pages, and curated references, then applies quality gates before publishing static pages. Broken summaries, locality mismatches, and unsupported claims are omitted instead of being rewritten as facts.
Source model / 出典モデル
Each onsen record can combine multiple source rows. Yumo.to favors official operator or destination pages when available, but can also link to other authoritative references such as public datasets or tourism sources. The page-level source count and source links are shown on onsen pages.
Freshness & verification / 更新と検証
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Site build updated / サイト最終更新2026-03-08
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Tier A pages / 重点ページ1,691
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Pages with summary text / 概要あり1,602
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Known tattoo policy / 刺青情報あり1,313
Field rules / 項目ルール
Tattoo, access, price, opening hours, spring type, temperature, and pH are only shown when Yumo.to has an explicit value. If a summary includes citation fragments, encoded entities, broken punctuation, or another prefecture instead of the current one, the summary is removed from static SEO output and replaced with a neutral factual fallback.