What is PD (Paid Difficulty) metric?

PD stands for "Paid Difficulty" and represents an estimation of how hard it would be to show on the 1st page of the Search Engine using Paid marketing for a given keyword.

PD is measured on a scale from 0 to 100, with the latter being the hardest to rank for.

PD is calculated using our own algorithm, it is based on Cost per click and ads bids range.