Domain Authority
Checker
Instantly check DA, PA, Spam Score & backlinks for any domain — free & real-time.
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What is Domain Authority?
DA is a 1–100 score developed by Moz that predicts how likely a website is to rank in search engine results. Higher = stronger. It's based on backlink quality, quantity, and dozens of other signals.
What is Page Authority?
PA measures the ranking strength of a specific page (not the whole domain). Useful when you want to compare individual URLs, not just root domains.
What is Spam Score?
Spam Score (0–17) flags how many attributes a domain shares with known spam sites. A high spam score is a red flag in link-building — avoid getting backlinks from spammy domains.
What are External Links?
The number of external pages pointing to the root domain. More quality backlinks = better authority signal. This is the raw fuel that powers DA growth.