I've been reading that Google prefers semantic filenames for images, to make them rank well for SEO, and they recommend using hyphenated filenames when there are several words per filename, like
However, what about using periods as a separator of words?
Would a filename like so:
beautiful.country.house.jpg still be properly indexed?
Would Google prefer the hyphenated filenames anyways? If so, I'd like to understand why.
Essentially, we have hundreds of images which filenames are made of words and periods, so we wonder if we should change that.
Many thanks for any clue.