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How can you explain that a website (not mine) appears on 1st place in Google (on the Keyword Difficulty Tool/Ranking Analysis) but the Page Authority, Page Linking Root Domains, Domain Authority, and Root Domain Linking Root Domains are much lower than the other websites on the list. Even when running the On-Page Report Card, this website gets grade F comparing to the other (including mine) websites that get better grades. I just want to understand which criteria I'm missing that can explain why a website appears on first place when it seems it's not well optimized. Any input is appreciated. Thanks.