關於「Google search by image」標籤，搜尋引擎有相關的訊息討論：

Googlewww.google.com › imghp › hl=zh-TWImages - Googlewww.google.com › imghpFind the URL of a page or image - Android - Google Search Helpsupport.google.com › websearch › answerimage search for google - Google Play 應用程式play.google.com › store › apps › details › hl=zh_TW › gl=US