Go to the website where the image is located. Right-click on the image and select Copy image address or similar option. Open a new tab and go to Google Images (images.google.com). Click on the camera icon in the search bar and select Paste Image URL. Paste the image URL into the search bar and click Search by image.
Alternatively, you can also use your smartphone to search by image: Open the web page with the image you want to search for. Tap and hold the image until a context menu appears. Select Search image with Google Lens or a similar option. Google will then display search results related to the image.
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Another option is to use a reverse image search engine such as TinEye or SmallSEOTools. These tools allow you to upload an image or enter an image URL to find similar images and their sources.
When using these methods, keep in mind that the results may not always provide the original source of the image, but they can help you find similar images and their sources, which may lead you to the original. Additionally, it's important to consider the context of the image and use your critical thinking skills to evaluate the credibility of the sources.