To optimize website images for better Google search results, you should:
Use descriptive filenames. The filename should give Google a clue about the subject matter of the image. For example, instead of "image1.jpg", use "golden-gate-bridge-sunset.jpg".
Include alt text. Alt text is a text description of the image that is displayed to users who are unable to see the image, such as those who are using screen readers. Alt text is also used by Google to understand the content of your images.
Use the right file format. Some file formats, such as JPEG and PNG, are better suited for certain types of images than others. For example, JPEG is a good choice for photos, while PNG is a good choice for images with sharp text.
Resize your images to the correct dimensions. Avoid using large images that are larger than necessary. This will help to improve your website's loading speed and performance.
Compress your images without sacrificing quality. There are many image compression tools available that can help you to reduce the file size of your images without sacrificing quality.
In addition to the above tips, you can also improve your image SEO by:
Using image sitemaps. An image sitemap is a file that tells Google about all of the images on your website. You can create an image sitemap using a variety of tools and software.
Using responsive images. Responsive images are images that automatically resize to fit the screen of the device that they are being viewed on. This helps to improve the user experience and can also improve your website's loading speed.
Adding structured data to your images. Structured data is a type of code that can be added to your website to help Google understand the content of your pages and images. There are a number of different types of structured data that you can use, but one type that is particularly useful for images is schema.org imageObject.
By following these tips, you can optimize your website images for better Google search results and improve your chances of appearing in Google Images search results.
Here are some additional tips:
Use high-quality images. Google wants to show users the best possible images in their search results. Make sure that your images are well-lit, in focus, and high-resolution.
Place your images near relevant text. Google uses the surrounding text to understand the context of an image. Place your images near text that describes the subject matter of the image.
Use images on relevant pages. Google wants to show users images that are relevant to their search queries. Place your images on pages that are relevant to the subject matter of the image.
By following these tips, you can improve your chances of appearing in Google Images search results for relevant keywords.