Honestly, these hyper judgemental mumsnetters. Why dont you just ask if the link is safe.
Anyone who has use facebook would know what it is. Its a link to an image on facebook.
I used that because the tweet is from a restricted account. But you could at least see who the poster was.
I am getting so fed up of those who come on threads to just derail for what seems no other reasons than to exhibit some sort of superiority.
Next time just be an ordinary polite person and ask.
FFS