I'm thinking of taking an opportunity to pay for a guest post on a very popular website (alexa 2,000) with a DA of about 85 or so and a PR of 7. The cost for it is going to be about 55$.
How valuable is a back link like this?
I know the Page Rank on the guest post might not be a lot, but the authority of the website is amazing.
Also I had a few more questions.
How often can I safely get back links with a similar authority without risking the Google penalty?
I was thinking of paying for guest post back links on PR 2 to 4 websites, but when I learned that a PR 7 back link on a real website (not spammy at all, well-known) is multiple times more effective for SEO benefits