Why to use post thumbnail

View the importance of srcset and sizes attributes in the image element from the below YouTube Video.

Why to use post thumbnail

• the_post_thumbnail automatically adds srcset and sizes attributes to the image element. This allows the browser to load the appropriate image size based on the device’s screen size. This is a great way to improve the performance of your website.
• It is also possible to add custom image sizes to the srcset attribute. This is useful if you want to load a different image size for a specific screen size.
• the_post_thumbnail also adds alt attribute to the image element. This is important for SEO purposes.
• the_post_thumbnail also adds title attribute to the image element. This is important for SEO purposes.