Frequently Asked Questions

Everything you need to know about Domain Authority, Page Authority, Spam Score and backlinks.

Domain Authority is a score from 0 to 100 that predicts how well a website can rank on search engines. Higher scores mean stronger ranking potential. It is calculated from factors like linking root domains and total links.
Page Authority is similar to DA but measures the ranking strength of a single page rather than the whole domain. A page with high PA is more likely to rank for its target keywords.
As a rough guide: 0–20 is low (new sites), 20–40 is average, 40–60 is good, 60–80 is strong, and 80+ is excellent (major brands and authorities).
Spam Score estimates how "spammy" a website looks, as a percentage. A high spam score can hurt rankings and is a red flag when buying backlinks or expired domains. Lower is better.
Publish quality content, earn backlinks from reputable sites, fix broken links, improve site speed and mobile experience, and remove toxic backlinks. DA grows slowly — focus on real SEO, not shortcuts.
No. They are third-party metrics that estimate ranking potential — Google does not use them directly. Still, they are widely used in SEO to compare sites and evaluate link prospects.
Nofollow links do not pass ranking credit directly, but they still bring referral traffic, brand visibility, and a natural-looking link profile, which indirectly supports SEO.
Our data providers refresh their link indexes regularly (usually every few weeks). Scores you see reflect the most recent available data.