What's better for SEO an Optimized Image URL vs Optimized Image File Name?

[K_borg]

I would like to know what is best practice for optimizing images for our website.

Is it better to give an Image an optimized filename Or an optimized URL for SEO? Or is it better to do both?

Would there be any harm in doing both if they are identical in their format?

Any help would be greatly appreciated.

With thanks,

Kate

[Mobilio]

You need 3 things for images SEO:

1. Optimized filename.
2. Optimized URL
3. Optimized alt and text to them.

If some isn't proper images SEO is hard. If you're in doubt please see Moz special WBF about this:
https://moz.com/blog/image-seo-basics-whiteboard-friday

[K_borg]

Thanks Peter for your response.

Should the filename and URL structure be different, or is ok for them to be the same?

[Martijn_Scheijbeler]

It could be the same, but I wouldn't overdo it and make it /pandas-in-chinese-zoo/pandas-in-chinese-zoo.jpg just to make sure you would stuff some extra keywords in there.