Let's say that i have a image restaurant-photo_big.jpg
which is 640x480..
How can I change the resolution safely for SEO purposes? it's the same identical image but 800x800 (it may be cropped out compared to the old one).
- Should I simply replace
restaurant-photo_big.jpg
? - Should I leave on my server old
restaurant-photo_big.jpg
(not linked anywhere) and createrestaurant-photo_huge.jpg
? - Should I 301 redirect
restaurant-photo_big.jpg
torestaurant-photo_huge.jpg
?
thank you in advance :)