>>136
ブラウザにUsager Agentを変える拡張を入れて試してみてもらいたい

OK(Goneにならないもの)
Edge 12→Edge/12.10240
IE 10→Mozilla/5.0 (MSIE 10.0; Windows NT 6.1; Trident/5.0)
Chrome 57→Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36
FireFox45→Mozilla/5.0 (Windows NT 4.0; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0
Vivaldi 1.15→Mozilla/5.0 (Windows NT 7.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.90 Safari/537.36 Vivaldi/1.15.7145.36
Opera 12.14→Opera/9.80 (Windows NT 6.0) Presto/2.12.388 Version/12.14

Goneになるもの
Firefox 33→Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20120101 Firefox/33.0
Firefox 38→Mozilla/5.0 (Windows NT 10.1; Win64; rv:38.0) Gecko/20100101 Firefox/38.0
Opera 12.16→Opera/9.80 (X11; Linux x86_64; Mozilla/5.0 (Windows NT 6.1; rv:31.0) Gecko/20100101 Firefox/31.0) Presto/2.12 Version/12.16
Chrome 32→Mozilla/5.0 (Windows NT 6.0; WOW64) AppleWebKit/537.43 (KHTML, like Gecko) Chrome/32.0.1664.3 Safari/537.43

Goneではなく画像認証のページに飛ばされるもの
（One more step
Please complete the security check to access 5ch.net）
IE 6→Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; WOW64; Trident/4.0; SLCC1)