Comment déterminer si un contenu est copié

Section 4.6.7 · page 43 · version du 11 septembre 2025

DocumentGeneral Guidelines, Google
Version11 septembre 2025, 182 pages
ChapitreLes pages de qualité Lowest

Le texte de Google, traduit

Comment déterminer si tout ou presque tout le Main Content (MC, contenu principal) est copié ? Comment identifier la source originale du contenu ? Comment savoir si le contenu est paraphrasé à partir d'une seule page ou de plusieurs pages ? Ces éléments peuvent être difficiles à déterminer, mais les étapes suivantes peuvent aider. 1. Copiez une phrase ou une expression du texte. Il peut être nécessaire d'essayer plusieurs phrases ou expressions de la page pour en être sûr. Au moment de choisir la phrase ou l'expression à copier, cherchez une phrase ou une suite de plusieurs mots sans ponctuation, sans caractères inhabituels et sans mots suspects qui pourraient avoir remplacé le texte original. 2. Faites une recherche sur Google en collant la phrase ou l'expression (entourée de guillemets pour chercher une correspondance exacte) dans la barre de recherche Google. Vous pouvez aussi essayer sans guillemets pour chercher des correspondances plus générales. Voici quelques phrases et expressions tirées de cette page sur le film « The Wizard of Oz » et la façon de les rechercher. Phrase ou expression Extrait d'une phrase Requête pour retrouver la phrase ou l'expression Une phrase de la page : All are convinced by Dorothy that the Wizard can help them too Essayez la requête avec et sans guillemets autour de la phrase : [ « All are convinced by Dorothy that the Wizard can help them too » ] [ All are convinced by Dorothy that the Wizard can help them too ] Une expression de la page : Dorothy uses the Golden Cap to summon the Winged Monkeys Essayez la requête avec et sans guillemets autour de la phrase : [ « Dorothy uses the Golden Cap to summon the Winged Monkeys » ] [ Dorothy uses the Golden Cap to summon the Winged Monkeys ] Une autre expression de la page : revealing an old man who had journeyed to Oz from Omaha long ago in a hot air balloon Essayez la requête avec et sans guillemets autour de la phrase : [ « revealing an old man who had journeyed to Oz from Omaha long ago in a hot air balloon » ] [ revealing an old man who had journeyed to Oz from Omaha long ago in a hot air balloon ] 3. Comparez les pages que vous trouvez et qui correspondent à la phrase ou à l'expression. Leur MC est-il majoritairement identique ? Si oui, l'une d'elles provient-elle clairement d'une source très faisant autorité, connue pour créer du contenu original (journal, magazine, fondation médicale, etc.) ? Une source semble-t-elle raisonnablement être l'original ? Une source semble-t-elle avoir la date de publication la plus ancienne, vérifiée par des sources comme la Wayback Machine ? À partir de cette ancienne version d'un article Wikipedia sur « The Wizard of Oz », que l'on peut retrouver via l'Internet Archive Wayback Machine, nous pouvons confirmer que le texte du tableau a été copié. Notez que la recherche de la phrase et des expressions ci-dessus ne vous mènera pas à l'article Wikipedia actuel sur « The Wizard of Oz », ce qui montre que confirmer que le MC d'une page contient du contenu copié peut parfois être difficile. Le contenu paraphrasé peut être beaucoup plus difficile à reconnaître. Utilisez le même processus que celui décrit ci-dessus pour chercher d'autres pages au contenu similaire, en recherchant des phrases de la page ou le titre de la page. Le contenu paraphrasé a des chances de :

La version originale

Section 4.6.7, page 43

How do you determine whether all or most of the MC is copied? How do you identify the original source of the content? How do you know if content is paraphrased from a single page or from multiple pages? These things can be difficult to determine, but the following steps may help. 1. Copy a sentence or phrase in the text. It may be necessary to try a few sentences or phrases from the page just to be sure. When deciding what sentence or phrase to copy, try to find a sentence or series of several words without punctuation, unusual characters, or suspicious words that may have replaced the original text. 2. Search on Google by pasting the sentence or phrase (surrounded by quotation marks to search for an exact match) inside the Google search box. You may also try without quotation marks to search for more general matches. Here are some sentences and phrases from this page about “The Wizard of Oz” film and how to search for them. Sentence or Phrase From a Sentence Query to Find the Sentence or Phrase A sentence on the page: All are convinced by Dorothy that the Wizard can help them too Try the query both with and without quotation marks around the sentence: [ “ All are convinced by Dorothy that the Wizard can help them too ” ] [ All are convinced by Dorothy that the Wizard can help them too ] A phrase on the page: Dorothy uses the Golden Cap to summon the Winged Monkeys Try the query both with and without quotation marks around the sentence: [ “ Dorothy uses the Golden Cap to summon the Winged Monkeys ” ] [ Dorothy uses the Golden Cap to summon the Winged Monkeys ] A different phrase on the page: revealing an old man who had journeyed to Oz from Omaha long ago in a hot air balloon Try the query both with and without quotation marks around the sentence: [ “ revealing an old man who had journeyed to Oz from Omaha long ago in a hot air balloon ” ] [ revealing an old man who had journeyed to Oz from Omaha long ago in a hot air balloon ] 3. Compare the pages you find that match the sentence or phrase. Is most of their MC the same? If so, does one clearly come from a highly authoritative source that is known for original content creation (newspaper, magazine, medical foundation, etc.)? Does one source seem to reasonably be the original? Does one source appear to have the earliest publication date, verified by sources like the Wayback Machine? Based on this older version of a Wikipedia article about “The Wizard of Oz,” which can be found using the Internet Archive Wayback Machine , we can confirm that the text in the table has been copied. Please note that searching for the above sentence and phrases will not lead you to a current Wikipedia article about “The Wizard of Oz,” which demonstrates how confirming that the MC of a page contains copied content can sometimes be difficult. Paraphrased content can be much harder to recognize. Use the same process described above to search for other pages with similar content by searching for sentences from the page or searching for the page title. Paraphrased content is likely to:

  • Only contain commonly known information or generally known facts
  • Have high overlap with webpages on well established sources such as Wikipedia, reference websites, etc.
  • Appear to summarize a specific page such as a forum discussion or news article without any added value
  • Have words or other indications of summarizing or paraphrasing generative AI tools, such as words like "As an AI language model" ( example ) Use your best judgment. Sometimes it is clear that the content is copied or paraphrased from somewhere, but you cannot tell what the original source is. Other times the content found on the original source has changed enough that searches for sentences or phrases may no longer match the original source. For example, Wikipedia articles can change dramatically over time. Text copied from old copies may not match the current content. Summaries or paraphrased content may have a different organizational structure than the original source. If you strongly suspect the page you are evaluating is not the original source, consider it likely to be copied or paraphrased. Important : If all or almost all of the MC on the page (including text, images or videos) is copied, paraphrased, embedded, or reposted from other sources, you must assess the level of effort, originality and added value for website visitors in order to assign a rating. The Lowest rating is appropriate if there is little to no effort, little to no originality, and little to no added value for website visitors. The Low rating is appropriate if there is low effort, originality or added value to website visitors.

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