About the Domain Authority Check Assistant
"Domain Authority" is a well-known third-party metric (popularized by Moz) that estimates how likely a website is to rank in search results, based on proprietary data like backlink profiles that require paid access to calculate precisely. This Domain Authority Check Assistant instead gives you a transparent, calculator-style estimate based on inputs you already know or can look up for free — domain age, approximate backlink count, and indexed page count — so you can get a rough directional sense of a site's relative authority without a paid subscription.
This tool is useful for site owners wanting a quick sanity check of their own site's standing, marketers evaluating potential guest-posting or link-building partners, and students learning which factors commonly correlate with a domain's search authority.
To use it, enter your domain's approximate age in years, an estimated number of referring domains linking to you (which you can find using free backlink checker tools or Google Search Console-adjacent services), and the number of pages indexed by Google (visible via a "site:yourdomain.com" search). The tool combines these into a weighted 0–100 estimate score along with a breakdown explaining which factor is helping or hurting your estimate most.
For example, a five-year-old domain with 50 referring domains and 200 indexed pages might produce a moderate estimate score, while a brand-new domain with few backlinks would score low — directionally matching what you'd expect intuitively, even without proprietary crawl data.
A very important caveat: this estimate is not the same number you'd get from Moz, Ahrefs, or Semrush's own metrics, since those tools use massive proprietary link graphs and crawl data this calculator cannot access for free. Treat the result as a rough, educational directional indicator, not an exact substitute for a paid authority metric, and never make major SEO or business decisions based solely on this estimate.
Tip: focus on the underlying factors, not just the score itself — steadily growing genuine referring domains, publishing consistently indexed content, and maintaining an aged, trustworthy domain are the real, well-documented drivers of long-term organic search performance, regardless of which specific authority metric you're tracking.