Is striving to contact a website that I see contains inappropriate images in order to advise them, with the possibility of being exposed to temptation by seeing more of these images while searching for the contact option, considered out of fear of temptation?

You must lower your gaze from forbidden images. If you fear temptation from viewing them, avoid the website and suffice with disavowal in your heart and wishing for the removal of the evil, as Abu Dawud narrated from the Prophet, peace and blessings be upon him: "If a sin is committed on earth, whoever witnesses it and dislikes it — he said once: disavows it — is like one who was absent from it. And whoever was absent from it and approved of it is like one who witnessed it."