Some JS are good dont know about others but una js, ddn js, kota js are examples of it
Newly introduced ones are mostly crawlers
please wait...Translate to HindiKuch JS ache hote hai, bakiyon ke bare mein nhi pta, lekin una js, ddn js, kota js unmein se kuch udaharan hai.
Naye introduced js ke adhiktar crawlers hote hai.