Hello, I read somewhere that for referencing and indexing of a site, Google uses more than 200 criteria. Someone there a list of these signals or even a few? 200 signals it seems to me much anyway.
Normally nobody will be able to know all of them Keyword density in the website (about certain keyword), title, backlinks, anchor texts, PR and the mpost important is google's oppinion
google using filters and by giving chrome its collecting human behavior then it will again use filter to make a better search results..............
Those are called algorithm.. Yes, They look at a lot of factors before ranking a page which includes but not limited to PageRank (Source, for those who don't trust it), backlinks, quality and uniqueness of the content etc..
Google surely have a lot of criteria but as long as you do a good whitehat technique in the later part there will be no problem in fact you will be surprised that your site is ranking up already without knowing those criteria and your site may have PR already which you did'nt really expect. Just do the right thing in optimizing and google will do the rest of it Google will never say its criteria for that, its a top secret