Bulk Authority Checker
Bulk Authority Checker is a free tool that checks up to 100 domains at once, showing each one's Open PageRank score, linking domains and eight-year trend.
- Free
- No sign-up
- Checks a live page
Check the authority of up to 100 domains at once, with the eight-year trend for each. The score comes from Open PageRank, calculated from the Common Crawl web graph — open data, not a private index. Most free checkers show one number today; the shape of the line over time is usually the more useful answer.
Your workspace
Guide
How to use it
- 1Paste your domains, one per line. Different forms of the same site are merged automatically.
- 2Press check. Results you have looked at recently come back instantly and cost nothing.
- 3Sort by authority or by linking domains to find the outliers.
- 4Download the CSV if you are putting this in a client report.
Common questions
Is this the same as Moz's Domain Authority?
No. DA and PA are Moz's proprietary metrics. This is Open PageRank, which measures the same underlying idea — how many important sites link to you — using open data. The numbers correlate but will not match, and we would rather say so than imply otherwise.
Why does my domain say 'not in the index'?
Usually because it is new or has very few links pointing at it. The Common Crawl graph covers over 118 million domains, but a site with no inbound links has nothing to calculate from.
Does a higher score mean I will rank better?
Not directly. No third-party authority score is used by Google. It is a useful comparison between sites and a reasonable proxy for link strength — not a ranking prediction.
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