DA
Domain Authority
A 1–100 score by Moz that predicts how well an entire website can rank. Great for comparing competitors and vetting guest-post or link opportunities.
Bulk DA PA Checker
Check Domain Authority, Page Authority, Spam Score and backlinks for up to 20 websites at once — free and fast.
Launching very soon
We are putting the finishing touches on DA PA Checker. The free bulk DA/PA checker will be live shortly — bookmark this page and check back soon!
PA
Page Authority
The same 1–100 scale for a single page. Switch to Exact URLs to measure the strength of specific articles or landing pages.
%
Spam Score
The share of similar sites that were penalized by Google. Low (1–30%) is healthy; high (61%+) deserves a closer look before you link.
How to check DA and PA in bulk
- Paste up to 20 domains or URLs — one per line or comma separated. We clean up http://, www. and paths for you.
- Choose Domains for site-wide metrics, or Exact URLs to get Page Authority for specific pages.
- Check and get DA, PA, Spam Score, linking root domains and backlinks. Sort the table, copy it, or download a CSV.
Frequently asked questions
What is Domain Authority (DA)?
Domain Authority is a score from 1 to 100 developed by Moz that predicts how likely a whole website is to rank in search results compared with other sites. It is calculated from the number and quality of linking root domains. Higher is stronger, and the scale is logarithmic — going from 20 to 30 is much easier than from 70 to 80.
What is Page Authority (PA)?
Page Authority uses the same 1–100 scale but scores a single page instead of the whole domain. Use the "Exact URLs" mode to check the PA of specific pages such as blog posts or product pages.
What is a good DA score?
It depends on your niche and competitors. As a rough guide: 1–20 is new or weak, 21–40 is average, 41–60 is good, 61–80 is strong and 81–100 is excellent (big brands and major publishers). Compare yourself with the sites you compete against rather than chasing a number.
What does Spam Score mean?
Spam Score is the percentage of sites with similar features that Moz found to be penalized or banned by Google. 1–30% is low, 31–60% is medium and 61–100% is high. A high Spam Score is a warning sign, not proof of spam — always review the site yourself.
How many domains can I check?
You can paste up to 20 domains or URLs per check and check up to 50 per day for free. Put one per line or separate them with commas. Duplicates and invalid entries are removed automatically.
Why is my new website showing DA 1?
Moz needs to discover links pointing to your site before it can score it. New sites, or sites with very few backlinks, usually start at DA 1 and grow as they earn links from other websites. Moz updates its index regularly, so changes can take a few weeks to show.
Does DA affect Google rankings?
No. DA and PA are third-party metrics from Moz, not Google ranking factors. They are useful for comparing sites, evaluating link opportunities and tracking SEO progress over time.
How fresh is the data?
Results come from the Moz Links API. To keep the tool free, results are cached for up to 7 days; the "cached" label shows when a result was served from cache.