Domain Authority Checker
Estimate a 0-100 authority and health score for any domain from public signals.
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The Domain Authority Checker scores any domain from 0-100 based on publicly observable signals: HTTPS, response time, robots.txt, sitemap, canonical tag, Open Graph, structured data, viewport and lang attributes. It is a transparent heuristic — not Moz's proprietary DA — and tells you exactly how the score was earned.
Why use this tool
Transparent scoring
We show every signal that contributed to the score — no black box.
Health-focused
Signals that matter for crawlability, share-ability and SEO best practice.
Free and instant
No account, no API key — just paste a domain.
How to use it
Enter the domain
Just the domain or a full URL works — we extract the host.
We fetch public signals
HTTPS, response time, robots.txt, sitemap and on-page meta tags.
Read the score and signals
Get a 0-100 score, a letter grade, and the full signal breakdown.
Frequently asked questions
Is this the same as Moz Domain Authority?+
No. Moz DA is a proprietary score based on link data. Our score is an independent heuristic from publicly visible technical signals, not a backlink estimate.
What does the score actually measure?+
Crawl-friendliness and on-page SEO hygiene: HTTPS, response time, robots.txt, sitemap, canonical tag, OG tags, structured data, viewport and lang attributes.
Why is my score lower than other tools say?+
Different tools weight signals differently. Our score is heuristic and transparent — you can see every signal that contributed.
Is the tool free?+
Yes — free with a small per-IP rate limit since each check fetches several pages.