PageRank is an important consideration in SEO, however don’t get too caught up in it.
PageRank is just one small piece of the SEO puzzle, being a Google-specific link analysis algorithm in its own right.
Google explains PageRank in their Patent page on it, as well as the life of a Google Query. This makes for great reading, and will help you grow your SEO understanding. I highly recommend checking it out.
In case you want to study up on Pagerank for your SEO efforts, however, here’s some places to start your research:
- WebWorkshop – Google’s PageRank Explained
- PageRank Wiki
- Check PageRank
- What Is Google PageRank, How Is It Earned & Does It Matter in 2016?
- Google’s SERPs on PageRank
So yes, PageRank should a factor in your SEO efforts, as well as even your personal (but quiet) KPI (Key Performance Indicators) but it’s definitely not everything. Understand what it is – perhaps even track it – and then move on, to more important on-page and off-page SEO factors.