Images are an important part for your website because it makes your content accessible, attractive and makes users engage on your website. You need to optimize your images in order to rank high in search results.
Image Optimization for SEO includes many techniques that are described below.
Image Optimization Techniques
1. Resize your images for image optimization
File size and image size are different things. Image size is the dimension of your image. File size refers to the amount of space required to place on the server. Image with higher resolution and dimension can affect your website speed. In order to increase your website performance, You need to reduce your file size without losing its quality.
2. Use Proper File format for image optimization
Usually, we use PNG, JPEG, and GIF for our images. Use JPEG for larger images, use PNG for simple images. Use SVG for your logos and icons.
3. Use a Proper compression rate for image optimization
If you compress your images too much, your file size reduces, but your image may lose its quality. If you use a low compressed image, your image quality is high, but the file size is large.
Use image optimizing tools that will reduce the file size without losing the image quality.
4. Use Proper Image File Names for image optimization
Choosing a proper file format is important for SEO to rank higher in search results. Use relevant keywords for your images. Your image name should include your primary keywords at the beginning and separate them with hyphens. Don’t use underscore because the search engine is not able to identify them and it will take it as a single word.
5. Image optimization using the alt tag
Search Engines can’t understand what your image is about. So, use an alt tag for your image to identify by the search engine. This is an alternative text for your images. Use proper alternative text. Using alt tag helps your webpage to rank high in search results.
6. Use proper image title for image optimization
WordPress usually takes the file name as your image name. So, you must rename your image with relevant keywords. If you are using images of WordPress themes, then your title should be like, WordPress-theme-name.
7. Includes captions for image optimization
Even though image caption is not important for SEO, you need to add an image caption to your image. Image captions are visible to the user on the webpage. Users can spend more time on your website there by it reduces the bounce rate.
8. Use Unique images for Image optimization
Do not use the same images as other websites. The image should be unique as your content. It will not rank your page if your image is not unique. So, try to upload a unique image as much as possible.
9. Use image structured data for image otimization
Structured data is an important factor for web page ranking. Use file name and file path to your images. For example, if you want to upload multiple products, instead of placing all images into one folder, place them in a subfolder.
10. Use Sitemaps for image optimization
A site map is a file which contains a list of WebPages of your site to inform search engine about the content of your webpage. You should include your images in the sitemap in order to recognize them by the search engine.