Hi folks, I understand that the picture file should come with proper file name instead of untitled.jpg to contribute to SEO. My question is there a different if the photo is hosted on the same domain and on different domain? In term of contributing to SEO. For example, <img src="proper-name.jpg" alt="very good" /> and <img src="https://lh4.googleusercontent.com/.../proper-name.jpg" alt="hosted on different domain, picasa" />