One of my customer website is not getting ranked by Google. It's been more than an year and have 1500+ backlinks as per Google Webmaster Tools, but still PageRank is zero?
Is this website being penalized and ranking against keywords are too low?
This question appears to be off-topic. The users who voted to close gave this specific reason:
Google PageRank has not been updated for a while (since 4 February 2013) and probably won't be updated anymore.
Moreover, it's not because the website has not a PageRank updated than it's penalized. Anyway, I checked and the website is not penalized.
If I were you, I should forget this PageRank concept. Nowadays, it's not accurate anymore.