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Understanding Essential Website Authority Metrics
A comprehensive breakdown of how search engines assess link equity, domain trust, and organic rankings.
What is Domain Authority (DA)?
Developed by Moz, Domain Authority is a search engine ranking score (1 to 100) that predicts how likely a website is to rank in SERP results. It evaluates root linking domains and total inbound backlink quality on a logarithmic scale.
What is Domain Rating (DR)?
Developed by Ahrefs, Domain Rating measures the strength and breadth of a target website's backlink profile compared to all other domains in the world index. Websites with DR 70+ command top-tier authority across commercial queries.
DoFollow vs. NoFollow: Why It Matters
DoFollow links pass PageRank and direct ranking equity from the source domain to your pages. NoFollow links do not pass direct link juice, but they provide critical brand citations, click-through traffic, and natural anchor balance.
How Spam Score Affects Rankings
Moz Spam Score represents the percentage of sites with similar link patterns that have been penalized or banned by Google. Scores between 1% and 30% represent normal, clean profiles with negligible algorithmic risk.