Google’s publically viewable PageRank hasn’t been updated in ages – and Google’s John Mueller stated back in 2014 that we probably shouldn’t expect to see it updated ever again. Frankly when Google dropped PageRank scores from Google Webmaster Tools (now Google Search Console) – alarm bells should’ve started going off.
Alas there’s still plenty of places that you can still find you’re rather out of date PageRank – and to help avoid any future confusion Google has announced to SearchEngineLand that they will be removing all public access to PageRank moving forward. That means that any websites, browser extensions, and toolbars that may still be displaying a PageRank will cease to function within the next few weeks.
PageRank will remain as an internal ranking signal, and all the blackhat SEO business surrounding it will probably continue to flourish as-well.