Free tool, data from Open PageRank
Domain Authority Checker with Open PageRank
Compare the link authority of up to ten domains at once. The score is Open PageRank, from 0 to 10, built from the links between sites in the Common Crawl.
Check domain authority
Enter up to ten domains, one per line. Urls work too.
Why use the Domain Authority Checker
Ten at once
Compare your site with your competitors in one request.
Honest labels
The score is Open PageRank from 0 to 10. It is not Moz Domain Authority or Ahrefs Domain Rating, and the tool never pretends it is.
Global rank
See where each domain stands among every domain Open PageRank knows.
Export
Copy the table or download it as CSV for a report.
When to use the Domain Authority Checker
Competitor research
See which sites in your market have the strongest link profiles.
Link prospects
Sort a list of sites you might get a link from.
Guest posts
Check a site before you spend time writing for it.
Buying a domain
Check whether an expired domain still has link value.
Client reporting
Track a simple authority number over time.
Agency pitches
Show a prospect where they stand against the competition.
Understanding Domain Authority
How to use the checker
- 1Domains. Enter up to ten domains or urls, one per line. www is removed for you.
- 2Check. The scores come from Open PageRank in a second or two.
- 3Compare. Sort by score or rank and download the table if you need it.
What Open PageRank measures
Open PageRank applies the original PageRank idea to domains: a domain is important when important domains link to it. It is computed from the Common Crawl and published by DomCop. The score runs from 0 to 10 on a logarithmic scale, so going from 6 to 7 is much harder than from 2 to 3.
What it does not measure
No third party score is used by Google. Moz Domain Authority, Ahrefs Domain Rating and Open PageRank are estimates from different link indexes and will not agree. Use one consistently, compare sites in the same market, and look at the links themselves before you decide anything.
Where the data comes from
The domains you enter are sent to the Open PageRank api through Aback's server. Aback keeps no copy of the result.
Related tools and guides
Frequently asked questions
Is this Moz Domain Authority?
No. Moz Domain Authority is a commercial metric from Moz. This tool shows Open PageRank, a free score from 0 to 10 built from Common Crawl data.
Is Open PageRank the same as Google PageRank?
No. Google stopped publishing PageRank in 2016. Open PageRank uses the same idea on public crawl data, at the level of whole domains.
What is a good score?
It depends on the market. Large global sites score 8 to 10. Most established small businesses score between 2 and 5.
Why does my domain have no score?
Open PageRank only scores domains that other sites link to in its crawl. New sites and sites with few links may have none yet.
How often is the score updated?
Open PageRank updates its data a few times a year. The date of the last update is shown with the result.
Does a higher score mean higher rankings?
Not by itself. Links help pages rank, but relevance, content and the page experience matter as much.
How many checks can I run?
Thirty requests an hour from one network, with up to ten domains in each.