This ad in particular is nefarious on mobile. Takes over the whole screen, wont allow you to go back, forces you to close the site and reopen it. Eff this ad!
http://us.caliber824xp.icu/amazongo/index_n.html?model=iPhone&brand=Apple&osversion=IOS%2011.4&ip=129.44.62.111&city=Bronx&voluumdata=deprecated&eda=deprecated&cep=q5LeGmfE7JiB50ZAl8SBg2j2pKfVueng5c2hYSWftBWoxqPVnomR40MvHlxUviVktoL99DZGN60j7E9vVTpKQwnbHDoJmCmkG9fJHRcwqDd6hmDaKtsm_GpwZr6fpgAMLCS9gpOvK28FwfaFCEpH6KL6CAPGawVABZawzHOIEwyqbFTRqGOHWfke8nEO9eHfZHVepMZPSlexL7TR-hh_SbSHGxpu0egd1riUguYVo3wbpPVwd8hfMDFFqFdsQRAT5pekiu-AFlMfqr0sqcHkeSjRsaW1m8ZqMnYvS-FIcVBSwWVgVx35BctkBRTWSn-Km9A43mvq12oXNZ8IkFMHcFCiWKpSjKdUToC3wiAEdY5gPmjOtWFnqRiokvY7tdS1a5Y3JKDOHosdXA5141cf6w&clickid=f52a679f_4d8f_42e6_9916_0240451b7c39499450.4569612407&channel_id=no_pub_name&rtb_source=Division_appnexus_us0619_ios&campaign_id=8996521&sizeid=32050&mediaid=no%20Media