The best way to avoid copyright infringement when using images on your website is to use your own original images that you have created yourself. As the creator, you own the copyright to these images and can use them freely on your website. However, if you did not take the photo yourself, you need to be more cautious about using images found online.
Many websites offer free-to-use images that do not require attribution, such as Unsplash, Pexels, Flickr's Public Domain group, and Pixabay. These sites provide search tools and categories to help you find appropriate images for your website. Additionally, you can use Google's advanced search features to filter results for images labeled for reuse or modification. If you are unsure about the copyright status of an image, you can try uploading it to Google Images, which may provide information on where the image is being used. It's important to always respect the copyright of images and only use them in accordance with the applicable licenses and terms of use.