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Google在8月及9月份的更新

Google公布了在8月及9月份期間,有關搜索排名算法的修改詳情,當中共涉及65個項目。下列將各項修改按分類列出:

Web Ranking & Indexing

  • LTS. [project “Other Ranking Components”] We improved our web ranking to determine what pages are relevant for queries containing locations.
  • #82279. [project “Other Ranking Components”] We changed to fewer results for some queries to show the most relevant results as quickly as possible.
  • #83709. [project “Other Ranking Components”] This change was a minor bug fix related to the way links are used in ranking.
  • #82546. [project “Indexing”] We made back-end improvements to video indexing to improve the efficiency of our systems.
  • #84010. [project “Page Quality”] We refreshed data for the “Panda” high-quality sites algorithm.
  • #83777. [project “Synonyms”] This change made improvements to rely on fewer “low-confidence” synonyms when the user’s original query has good results.
  • #84586. [project “Other Ranking Components”] This change improved how we rank documents for queries with location terms.

Page Quality & Scoring

  • #82862. [project “Page Quality”] This launch helped you find more high-quality content from trusted sources.
  • #83135. [project “Query Understanding”] This change updated term-proximity scoring.
  • Imadex. [project “Freshness”] This change updated handling of stale content and applies a more granular function based on document age.
  • #83689. [project “Page Quality”] This launch helped you find more high-quality content from trusted sources.
  • #84394. [project “Page Quality”] This launch helped you find more high-quality content from trusted sources.
  • #83761. [project “Freshness”] This change helped you find the latest content from a given site when two or more documents from the same domain are relevant for a given search query.

Sitelinks & Snippets & UI

  • #83105. [project “Snippets”] We refreshed data used to generate sitelinks.
  • #83442. [project “Snippets”] This change improved a signal we use to determine how relevant a possible result title actually is for the page.
  • #83443. [project “Knowledge Graph”] We added a lists and collections component to the Knowledge Graph.
  • #83012. [project “Knowledge Graph] The Knowledge Graph displays factual information and refinements related to many types of searches. This launch extended the Knowledge Graph to English-speaking locales beyond the U.S.
  • #83304. [project “Knowledge Graph”] This change updated signals that determine when to show summaries of topics in the right-hand panel.
  • Knowledge Graph Carousel. [project “Knowledge Graph”] This change expanded the Knowledge Graph carousel feature globally in English.
  • #82407. [project “Other Search Features”] For pages that we do not crawl because of robots.txt, we are usually unable to generate a snippet for users to preview what’s on the page. This change added a replacement snippet that explains that there’s no description available because of robots.txt.
  • #83670. [project “Snippets”] We made improvements to surface fewer generic phrases like “comments on” and “logo” in search result titles.
  • #84652. [project “Snippets”] We currently generate titles for PDFs (and other non-html docs) when converting the documents to HTML. These auto-generated titles are usually good, but this change made them better by looking at other signals.
  • #84211. [project “Snippets”] This launch led to better snippet titles.

Image Search

  • Maru. [project “SafeSearch”] We updated SafeSearch to improve the handling of adult video content in videos mode for queries that are not looking for adult content.
  • Palace. [project “SafeSearch”] This change decreased the amount of adult content that will show up in Image Search mode when SafeSearch is set to strict.
  • #82872. [project “SafeSearch”] In “strict” SafeSearch mode we remove results if they are not very relevant. This change previously launched in English, and this change expanded it internationally.
  • Sea. [project “SafeSearch”] This change helped prevent adult content from appearing when SafeSearch is in “strict” mode.
  • Cobra. [project “SafeSearch”] We updated SafeSearch algorithms to better detect adult content.
  • #84460. [project “Snippets”] This change helped to better identify important phrases on a given webpage.

About Stanley Lo

Stanley Lo現於澳洲最大的SEO公司的香港分部(First Page Limited)任職SEO Director,擁有多年SEO的豐富經驗,擅長SEO Audit、站內優化,連接策略,內容行銷及網站分析等。

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