There are many ways to optimize image tags. Here are some key SEO tips that can help you optimize image tags on your corporate website:

1. Use descriptive file names: Before uploading your image, name the file something relevant and descriptive. Avoid using meaningless numbers or random characters, and instead use file names that contain keywords so search engines can understand the image content.

2. Use appropriate image ALT attributes: ALT attributes are an important part of image tags, which provide a description of the image content for search engines. Make sure your ALT attributes include the main keywords related to the image and describe the image in as much detail as possible.

3. Compress images: Compressing images can reduce page loading time, thereby improving user experience. At the same time, compressed images can also reduce bandwidth consumption and server load.

4. Use CDN: CDN can help you load resources on your site faster and improve the performance and reliability of your site.

5. Use lazy loading: Lazy loading is a new technology that loads images when the user scrolls to them. This reduces page load times and improves user experience.

6. Use the correct format: Make sure you are using the correct format. For example, JPEG is suitable for photos, PNG is suitable for graphics and icons, etc.