Domain Authority
DA estimates the ranking strength of an entire domain. Backlink quality, quantity and other link signals all influence the score.
Free SEO authority checker
Know the strength of any website.
Check Domain Authority, Page Authority and Spam Score in seconds. Compare up to five URLs and track every score over time.
✓ Up to 5 URLs
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✓ Daily history
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Check Domain Authority
DADomain-wide ranking strength
PAAuthority of a specific page
0–100Easy-to-read authority scale
HistoryDaily authority tracking
Authority history
See if your SEO authority is really growing
Look back through up to 32 months of Moz authority data for any domain. See how Domain Authority and Page Authority changed without waiting for new measurements.
01 Check any domain or page
02 Load existing monthly Moz data
03 Compare up to 32 months
Open History Checker
Understand your numbers
Turn authority scores into better SEO decisions
DA and PA are comparative metrics. They are most useful when you compare your website with direct competitors and track progress over time.
Most checked
Page Authority
PA predicts the ranking potential of one specific URL. Use a full page URL to compare landing pages, articles and competitor content.
Spam Score
Spam Score shows the percentage of known risk signals associated with a site. A low score is generally preferable.
Reading your score
What is a good Domain Authority?
There is no universal “good” DA. A useful benchmark depends on your niche, the age of your domain and the strength of the sites you compete with.
Focus on the gap between you and the websites already ranking for your target keywords.
1–20Starting
21–40Growing
41–60Established
61–80Strong
81–100Exceptional
Frequently asked
Questions about DA and PA
Quick answers to the questions website owners and SEO specialists ask most often.
Is Domain Authority a Google ranking factor?+
No. Domain Authority is a third-party comparative metric, not a metric used directly by Google. It can still help you compare the relative link strength of websites.
How can I improve my Domain Authority?+
Build relevant, trustworthy backlinks, publish useful content, improve internal linking and remove or disavow harmful links when appropriate.
Why did my DA score change?+
Scores can change when your backlink profile changes, competitors gain links, or the underlying link index and scoring model are updated.
Should I check a domain or a full URL?+
Use the domain when you mainly want DA. Use a full page URL when Page Authority for a particular article or landing page matters.