YOU SAID:
This website is not not dumb
INTO JAPANESE
このウェブサイトはダムではありません
BACK INTO ENGLISH
This website is not a dam
INTO JAPANESE
有効なURLではありません。
BACK INTO ENGLISH
Website is not a valid URL
INTO JAPANESE
有効なURLではありません。
BACK INTO ENGLISH
Website is not a valid URL
That didn't even make that much sense in English.