[{"data":1,"prerenderedAt":592},["ShallowReactive",2],{"content-/seo-ranking-troubleshoot":3,"all-pages-for-dir":570,"related-/seo-ranking-troubleshoot":571,"og-image-/seo-ranking-troubleshoot":591},{"id":4,"title":5,"body":6,"category":556,"concepts":556,"description":557,"extension":558,"meta":559,"navigation":146,"ogImage":556,"path":560,"project_name":556,"published":561,"publishedAt":562,"seo":563,"source":556,"stem":564,"tags":565,"todo":556,"unpublished":561,"updatedAt":562,"__hash__":569},"pages/2025-12/2025-12-19/seo-ranking-troubleshoot.md","サイトが検索で上位に出ない時に考えること",{"type":7,"value":8,"toc":539},"minimark",[9,12,16,27,31,37,60,63,66,110,172,176,181,184,208,245,248,251,304,307,310,325,328,331,334,377,380,383,394,397,400,403,418,423,434,437,441,447,450,455,469,474,491,496,510,513,518,532,535],[10,11,5],"h1",{"id":5},[13,14,15],"h2",{"id":15},"まずインデックスされているか確認",[17,18,23],"pre",{"className":19,"code":21,"language":22},[20],"language-text","site:example.com\n","text",[24,25,21],"code",{"__ignoreMap":26},"",[28,29,30],"p",{},"これで0件なら、そもそもGoogleに認識されていない。Search Consoleの「インデックス作成」→「ページ」を見る。",[28,32,33],{},[34,35,36],"strong",{},"よくある原因:",[38,39,40,48,54,57],"ul",{},[41,42,43,44,47],"li",{},"robots.txt で ",[24,45,46],{},"Disallow: /"," している",[41,49,50,53],{},[24,51,52],{},"\u003Cmeta name=\"robots\" content=\"noindex\">"," が入っている",[41,55,56],{},"canonical が別URLを指している",[41,58,59],{},"サーバーが5xxを返している",[13,61,62],{"id":62},"クロールの問題を切り分ける",[28,64,65],{},"Search Console の「設定」→「クロールの統計情報」で確認。",[67,68,69,82],"table",{},[70,71,72],"thead",{},[73,74,75,79],"tr",{},[76,77,78],"th",{},"指標",[76,80,81],{},"見るべきポイント",[83,84,85,94,102],"tbody",{},[73,86,87,91],{},[88,89,90],"td",{},"クロールリクエスト数",[88,92,93],{},"急減していないか",[73,95,96,99],{},[88,97,98],{},"平均レスポンス時間",[88,100,101],{},"500ms超えていないか",[73,103,104,107],{},[88,105,106],{},"ホストの状態",[88,108,109],{},"エラー率が高くないか",[17,111,115],{"className":112,"code":113,"language":114,"meta":26,"style":26},"language-bash shiki shiki-themes vitesse-light vitesse-light","# robots.txt の確認\ncurl -I https://example.com/robots.txt\n\n# サイトマップの確認\ncurl https://example.com/sitemap.xml | head -50\n","bash",[24,116,117,126,141,148,154],{"__ignoreMap":26},[118,119,122],"span",{"class":120,"line":121},"line",1,[118,123,125],{"class":124},"sxvE3","# robots.txt の確認\n",[118,127,129,133,137],{"class":120,"line":128},2,[118,130,132],{"class":131},"senZ8","curl",[118,134,136],{"class":135},"snbK4"," -I",[118,138,140],{"class":139},"sdGka"," https://example.com/robots.txt\n",[118,142,144],{"class":120,"line":143},3,[118,145,147],{"emptyLinePlaceholder":146},true,"\n",[118,149,151],{"class":120,"line":150},4,[118,152,153],{"class":124},"# サイトマップの確認\n",[118,155,157,159,162,166,169],{"class":120,"line":156},5,[118,158,132],{"class":131},[118,160,161],{"class":139}," https://example.com/sitemap.xml",[118,163,165],{"class":164},"stQ0i"," |",[118,167,168],{"class":131}," head",[118,170,171],{"class":135}," -50\n",[13,173,175],{"id":174},"テクニカルseoのチェックリスト","テクニカルSEOのチェックリスト",[177,178,180],"h3",{"id":179},"core-web-vitals","Core Web Vitals",[28,182,183],{},"Lighthouse か PageSpeed Insights で計測。",[17,185,187],{"className":112,"code":186,"language":114,"meta":26,"style":26},"# CLIで計測\nnpx lighthouse https://example.com --only-categories=performance\n",[24,188,189,194],{"__ignoreMap":26},[118,190,191],{"class":120,"line":121},[118,192,193],{"class":124},"# CLIで計測\n",[118,195,196,199,202,205],{"class":120,"line":128},[118,197,198],{"class":131},"npx",[118,200,201],{"class":139}," lighthouse",[118,203,204],{"class":139}," https://example.com",[118,206,207],{"class":135}," --only-categories=performance\n",[67,209,210,219],{},[70,211,212],{},[73,213,214,216],{},[76,215,78],{},[76,217,218],{},"良好の基準",[83,220,221,229,237],{},[73,222,223,226],{},[88,224,225],{},"LCP",[88,227,228],{},"2.5秒以下",[73,230,231,234],{},[88,232,233],{},"INP",[88,235,236],{},"200ms以下",[73,238,239,242],{},[88,240,241],{},"CLS",[88,243,244],{},"0.1以下",[28,246,247],{},"LCPが遅いなら画像の最適化、INPが悪いならJS実行時間、CLSはレイアウトシフトの原因を潰す。",[177,249,250],{"id":250},"モバイルフレンドリー",[17,252,256],{"className":253,"code":254,"language":255,"meta":26,"style":26},"language-html shiki shiki-themes vitesse-light vitesse-light","\u003C!-- viewport設定 -->\n\u003Cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n","html",[24,257,258,263],{"__ignoreMap":26},[118,259,260],{"class":120,"line":121},[118,261,262],{"class":124},"\u003C!-- viewport設定 -->\n",[118,264,265,269,273,277,280,284,287,289,292,294,296,299,301],{"class":120,"line":128},[118,266,268],{"class":267},"shFtX","\u003C",[118,270,272],{"class":271},"sHkkW","meta",[118,274,276],{"class":275},"s4oTP"," name",[118,278,279],{"class":267},"=",[118,281,283],{"class":282},"sMJiu","\"",[118,285,286],{"class":139},"viewport",[118,288,283],{"class":282},[118,290,291],{"class":275}," content",[118,293,279],{"class":267},[118,295,283],{"class":282},[118,297,298],{"class":139},"width=device-width, initial-scale=1",[118,300,283],{"class":282},[118,302,303],{"class":267},">\n",[28,305,306],{},"Search Console の「モバイルユーザビリティ」レポートでエラーがないか確認。",[177,308,309],{"id":309},"構造化データ",[17,311,313],{"className":112,"code":312,"language":114,"meta":26,"style":26},"# リッチリザルトテスト\nhttps://search.google.com/test/rich-results\n",[24,314,315,320],{"__ignoreMap":26},[118,316,317],{"class":120,"line":121},[118,318,319],{"class":124},"# リッチリザルトテスト\n",[118,321,322],{"class":120,"line":128},[118,323,324],{"class":131},"https://search.google.com/test/rich-results\n",[28,326,327],{},"JSON-LDで適切なスキーマを入れているか確認する。FAQPage、HowTo、Articleなどが対象である。",[13,329,330],{"id":330},"コンテンツの問題",[177,332,333],{"id":333},"重複コンテンツ",[17,335,337],{"className":253,"code":336,"language":255,"meta":26,"style":26},"\u003C!-- canonical を正しく設定 -->\n\u003Clink rel=\"canonical\" href=\"https://example.com/page\">\n",[24,338,339,344],{"__ignoreMap":26},[118,340,341],{"class":120,"line":121},[118,342,343],{"class":124},"\u003C!-- canonical を正しく設定 -->\n",[118,345,346,348,351,354,356,358,361,363,366,368,370,373,375],{"class":120,"line":128},[118,347,268],{"class":267},[118,349,350],{"class":271},"link",[118,352,353],{"class":275}," rel",[118,355,279],{"class":267},[118,357,283],{"class":282},[118,359,360],{"class":139},"canonical",[118,362,283],{"class":282},[118,364,365],{"class":275}," href",[118,367,279],{"class":267},[118,369,283],{"class":282},[118,371,372],{"class":139},"https://example.com/page",[118,374,283],{"class":282},[118,376,303],{"class":267},[28,378,379],{},"www あり/なし、http/https、末尾スラッシュ有無で別URLになっていないか。",[177,381,382],{"id":382},"薄いコンテンツ",[38,384,385,388,391],{},[41,386,387],{},"文字数が少なすぎる（目安: 1000文字以上）",[41,389,390],{},"他サイトのコピー",[41,392,393],{},"自動生成っぽいテキスト",[177,395,396],{"id":396},"検索意図とのミスマッチ",[28,398,399],{},"「◯◯ 比較」で検索してるのに商品ページを出してもダメ。検索クエリに対して適切なページタイプを用意する。",[13,401,402],{"id":402},"被リンクの問題",[17,404,406],{"className":112,"code":405,"language":114,"meta":26,"style":26},"# Search Console → リンク → 外部リンク\n# または ahrefs / Moz などのツールで確認\n",[24,407,408,413],{"__ignoreMap":26},[118,409,410],{"class":120,"line":121},[118,411,412],{"class":124},"# Search Console → リンク → 外部リンク\n",[118,414,415],{"class":120,"line":128},[118,416,417],{"class":124},"# または ahrefs / Moz などのツールで確認\n",[28,419,420],{},[34,421,422],{},"チェック項目:",[38,424,425,428,431],{},[41,426,427],{},"被リンク数が競合より著しく少ない",[41,429,430],{},"スパムリンクが大量についてる",[41,432,433],{},"アンカーテキストが不自然（全部同じキーワードとか）",[13,435,436],{"id":436},"調査フロー",[438,439],"drawio-viewer",{"src":440},"/2025-12-19/seo-debug-flow.drawio",[17,442,445],{"className":443,"code":444,"language":22},[20],"1. site: 検索でインデックス確認\n     ↓\n2. Search Console でクロール/インデックスエラー確認\n     ↓\n3. Core Web Vitals チェック\n     ↓\n4. コンテンツの質・重複確認\n     ↓\n5. 被リンクプロファイル確認\n     ↓\n6. 競合分析\n",[24,446,444],{"__ignoreMap":26},[13,448,449],{"id":449},"面接で聞かれがちな追加質問",[28,451,452],{},[34,453,454],{},"「新規ドメインで順位が上がらない理由は？」",[38,456,457,460,463,466],{},[41,458,459],{},"ドメインエイジが若い（信頼性の蓄積がない）",[41,461,462],{},"被リンクがほぼゼロ",[41,464,465],{},"クロールバジェットが少ない",[41,467,468],{},"E-E-A-T（経験・専門性・権威性・信頼性）の実績がない",[28,470,471],{},[34,472,473],{},"「順位が急落した時に何を疑う？」",[38,475,476,479,482,485,488],{},[41,477,478],{},"Googleのアルゴリズムアップデート（直近のアナウンス確認）",[41,480,481],{},"手動ペナルティ（Search Consoleの「セキュリティと手動による対策」）",[41,483,484],{},"技術的な変更（robots.txt、noindex、リダイレクト）",[41,486,487],{},"サイト改修でのURL変更（301リダイレクト忘れ）",[41,489,490],{},"競合の台頭",[28,492,493],{},[34,494,495],{},"「SEOとUXがトレードオフになる場面は？」",[38,497,498,501,504,507],{},[41,499,500],{},"インタースティシャル広告（UX悪化だがCVには貢献）",[41,502,503],{},"ページネーション vs 無限スクロール",[41,505,506],{},"画像のalt属性の詰め込み",[41,508,509],{},"キーワード最適化 vs 自然な文章",[28,511,512],{},"基本方針: ユーザー体験を優先。Googleもそっちに向かってる。",[28,514,515],{},[34,516,517],{},"「SPAのSEO対策は？」",[38,519,520,523,526,529],{},[41,521,522],{},"SSR / SSG を使う（Next.js、Nuxt.js）",[41,524,525],{},"プリレンダリング（Prerender.io等）",[41,527,528],{},"Dynamic Rendering（Googlebotにだけ静的HTML返す）",[41,530,531],{},"History API で正しいURLを生成",[28,533,534],{},"最近のGoogleはJSレンダリングを改善しているが、SSRが無難である。",[536,537,538],"style",{},"html pre.shiki code .sxvE3, html code.shiki .sxvE3{--shiki-default:#A0ADA0;--shiki-dark:#A0ADA0}html pre.shiki code .senZ8, html code.shiki .senZ8{--shiki-default:#59873A;--shiki-dark:#59873A}html pre.shiki code .snbK4, html code.shiki .snbK4{--shiki-default:#A65E2B;--shiki-dark:#A65E2B}html pre.shiki code .sdGka, html code.shiki .sdGka{--shiki-default:#B56959;--shiki-dark:#B56959}html pre.shiki code .stQ0i, html code.shiki .stQ0i{--shiki-default:#AB5959;--shiki-dark:#AB5959}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .shFtX, html code.shiki .shFtX{--shiki-default:#999999;--shiki-dark:#999999}html pre.shiki code .sHkkW, html code.shiki .sHkkW{--shiki-default:#1E754F;--shiki-dark:#1E754F}html pre.shiki code .s4oTP, html code.shiki .s4oTP{--shiki-default:#B07D48;--shiki-dark:#B07D48}html pre.shiki code .sMJiu, html code.shiki .sMJiu{--shiki-default:#B5695977;--shiki-dark:#B5695977}",{"title":26,"searchDepth":128,"depth":128,"links":540},[541,542,543,548,553,554,555],{"id":15,"depth":128,"text":15},{"id":62,"depth":128,"text":62},{"id":174,"depth":128,"text":175,"children":544},[545,546,547],{"id":179,"depth":143,"text":180},{"id":250,"depth":143,"text":250},{"id":309,"depth":143,"text":309},{"id":330,"depth":128,"text":330,"children":549},[550,551,552],{"id":333,"depth":143,"text":333},{"id":382,"depth":143,"text":382},{"id":396,"depth":143,"text":396},{"id":402,"depth":128,"text":402},{"id":436,"depth":128,"text":436},{"id":449,"depth":128,"text":449},null,"SEOの観点から検索順位が低い原因と改善策を解説","md",{},"/seo-ranking-troubleshoot",false,"2025-12-19T00:00:00.000Z",{"title":5,"description":557},"2025-12/2025-12-19/seo-ranking-troubleshoot",[566,567,568],"seo","web","marketing","3k71sHNWDBhmY3g8vw2Z7mxqBod2qxMuSnQs9b3q52M",[],[572,576,579,583,587],{"title":573,"path":574,"publishedAt":575},"2026年7月28日の開発日記 - Udemyリンク62本の移設仕上げとnoteマネタイズ立ち上げ準備","/2026-07-28-diary","2026-07-28T00:00:00.000Z",{"title":577,"path":578,"publishedAt":575},"Search Console を調べ直したら「伸びていない」が「4割落ちていた」に変わった — 日記の noindex 提案に待ったをかけた日","/gsc-review-noindex-rethink",{"title":580,"path":581,"publishedAt":582},"把握していたのは4サイト、実際は15ドメイン — 手持ちのサイトを棚卸しした日","/site-portfolio-due-diligence","2026-07-26T00:00:00.000Z",{"title":584,"path":585,"publishedAt":586},"Google Search Console分析から内部リンク実装へ — Nuxtブログに関連記事セクションとタグページ553枚を一日で載せた","/gsc-internal-linking-implementation","2026-07-19T00:00:00.000Z",{"title":588,"path":589,"publishedAt":590},"Search Console効果測定で未登録5,030件の主因を特定し、デプロイエラーまで片付けた日","/search-console-audit-and-deploy","2026-07-04T00:00:00.000Z","https://log.eurekapu.com/og/blog/seo-ranking-troubleshoot.png?v=2025-12-19T00%3A00%3A00.000Z&title=%E3%82%B5%E3%82%A4%E3%83%88%E3%81%8C%E6%A4%9C%E7%B4%A2%E3%81%A7%E4%B8%8A%E4%BD%8D%E3%81%AB%E5%87%BA%E3%81%AA%E3%81%84%E6%99%82%E3%81%AB%E8%80%83%E3%81%88%E3%82%8B%E3%81%93%E3%81%A8&author=Kei%20Komatsu&sig=dca758f54ad19132",1785654683594]