I believe that's a typo for 'to state'. 'To cite' doesn't fit the sentence. Actually it's not strictly a typo. It's most likely an anticipation of the proper use of 'site' a few words later. That's more likely than a spelling error here. I'm not sure there's a word for this, but there should be. Many errors referred to as typos are actually errors of mental functioning rather than mis-typing - some type of 'thinko' - in this case, having the word 'site' in one's head ready to type, but triggering it too early by the need for a similar word, 'state'.
PS: You can cite the site as being unstable. You can't cite the site is unstable.