Google では長い間、明確な独自の価値を提供していないにもかかわらず検索結果の上位に表示されることのみを目的とするサイトを目にしてきました。このような誘導は、サイト内の複数のページを利用したり、多数のドメインを利用したり、またはそれらを組み合わせた形で行われています。Google ではユーザーに表示される検索結果の品質向上を目的として、より適切にこのような種類のページに対応するためのランキングの調整を近日中に開始します。大規模かつ入念な誘導キャンペーンを実施しているサイトは今回の変更によって大きな影響を受ける可能性があります。
ウェブマスターの皆様に Google のガイドラインを十分にご理解いただけるよう、品質に関するガイドラインに
誘導ページ
の明確な例を追加するとともに、その定義を更新しました。
誘導ページかどうかは、たとえば、以下のような項目に基づいて判断されます。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["必要な情報がない","missingTheInformationINeed","thumb-down"],["複雑すぎる / 手順が多すぎる","tooComplicatedTooManySteps","thumb-down"],["最新ではない","outOfDate","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["サンプル / コードに問題がある","samplesCodeIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2015-03-01 UTC。"],[[["\u003cp\u003eGoogle is launching a ranking adjustment to address doorway pages that negatively impact search results.\u003c/p\u003e\n"],["\u003cp\u003eDoorway pages are created to manipulate search rankings and provide a poor user experience by funneling users to irrelevant content.\u003c/p\u003e\n"],["\u003cp\u003eGoogle's updated guidelines provide a clearer definition of doorway pages and offer examples to help webmasters.\u003c/p\u003e\n"],["\u003cp\u003eSites with extensive doorway campaigns can expect to see significant changes in their search rankings due to this update.\u003c/p\u003e\n"],["\u003cp\u003eWebmasters can refer to a list of questions provided by Google to assess if their pages qualify as doorway pages and take corrective actions.\u003c/p\u003e\n"]]],["Google's Search Quality team is implementing a ranking adjustment to combat doorway pages, which are designed solely for search engines and negatively impact user experience. These pages often lack unique value, duplicate content, or funnel traffic without providing useful information. Webmasters are advised to evaluate their pages using provided questions to assess if they're optimized for users or solely for search traffic. Sites with significant doorway page campaigns may experience a notable impact from this update. The team also clarified doorway pages in the Quality Guidelines.\n"],null,["# An update on doorway pages\n\nMonday, March 16, 2015\n\n\nGoogle's Search Quality team is continually working on ways in which to minimize the impact of\nwebspam on users. This includes\n[doorway pages](/search/docs/advanced/guidelines/doorway-pages).\n\n\nWe have a long-standing view that doorway pages that are created solely for search engines can\nharm the quality of the user's search experience.\n\n\nFor example, searchers might get a list of results that all go to the same site. So if a user\nclicks on one result, doesn't like it, and then tries the next result in the search results page\nand is taken to that same site that they didn't like, that's a really frustrating experience.\n\n\nOver time, we've seen sites try to maximize their \"search footprint\" without adding clear, unique\nvalue. These doorway campaigns manifest themselves as pages on a site, as a number of domains, or\na combination thereof. To improve the quality of search results for our users, we'll soon launch a\nranking adjustment to better address these types of pages. Sites with large and well-established\ndoorway campaigns might see a broad impact from this change.\n\n\nTo help webmasters better understand our guidelines, we've added clarifying examples and freshened\nour definition of\n[doorway pages](/search/docs/advanced/guidelines/doorway-pages) in our Quality\nGuidelines.\n\nHere are questions to ask of pages that could be seen as doorway pages:\n\n- Is the purpose to optimize for search engines and funnel visitors into the actual usable or relevant portion of your site, or are they an integral part of your site's user experience?\n- Are the pages intended to rank on generic terms yet the content presented on the page is very specific?\n- Do the pages duplicate useful aggregations of items (locations, products, etc.) that already exist on the site for the purpose of capturing more search traffic?\n- Are these pages made solely for drawing affiliate traffic and sending users along without creating unique value in content or functionality?\n- Do these pages exist as an \"island?\" Are they difficult or impossible to navigate to from other parts of your site? Are links to such pages from other pages within the site or network of sites created just for search engines?\n\n\nIf you have questions or feedback about doorway pages, please visit our\n[webmaster help forum](https://support.google.com/webmasters/go/community).\n\nPosted by Brian White, Google Webspam Team"]]
