Hi @Syamraj K, It is now called CJ Affiliate.If your a beginner, you can simply sign-up for free here.. Once you are signed up, complete your profile to ensure you get fast approval for any affiliate program via CJ. Now, click on get links and you can either search for your target affiliate program via Advertiser list.
One thing which I like about Commission Junction is you can easily select product based on different niche. Especially if you are one of those who are running different niche blog, you can pick niche based product which you can put into your blog and make huge commission.
I understand, but I am wondering if they have a specific requirement for the Traffic, PA & DA, or anything similar that they use for Judging during the application screening,
Hello Syamraj
Common Junction now is called CJ Affiliate as state by Eric Clifford. And I believe Eric's answer covers everything and does not need further explanation :-)
I'm not sure too if there are PA, DA and other ranking requirements but your site should be optimized and make sure that you have great content too that is already existing before applying to become an affiliate.
To my knowledge, every site is reviewed on a case by case basis so there isn't an exact number we can give you. Be sure that your site is SEO friendly.