Free Domain Authority Checker

What domain authority actually tells you

Domain authority is a single number that estimates how strong a website is in search — driven mostly by the quantity and quality of backlinkspointing at it. It's the closest proxy SEOs have for “how hard will it be for this site to rank?” A high-authority domain can publish a page and rank it quickly; a brand-new domain can publish the exact same page and sit on page 6 for months — same content, different authority.

Important nuance: “Domain Authority” (DA) is Moz's trademarked metric, Ahrefs calls theirs Domain Rating (DR), and Google publishes no official authority score at all. This tool uses Open PageRank— a free, Common-Crawl-derived authority metric — normalised to a 0–100 scale so it reads like the DA number you're used to. It's an independent estimate of the same underlying thing (link authority), not Moz's proprietary number.

How to read your Authority Score

• 60–100 — Strong. A mature backlink profile. You can compete for tough, high-volume head terms.
• 35–59 — Moderate. Authority is building. Mid-difficulty keywords are winnable; keep earning links.
• 15–34 — Low. Thin link profile. Win long-tail keywords now; the head terms come later.
• Under 15 — New / unranked. Too little backlink data yet. Normal for a fresh domain — focus on long-tail content and your first quality links.

Why authority is the slow part of SEO

On-page SEO (titles, headings, schema) and technical SEO (speed, crawlability, Core Web Vitals) are things you control and can fix today. Authority is different — you can't fix it on your own site;you have to earn it from others. That's why a technically perfect new site still can't outrank an established competitor for a competitive term: it hasn't accumulated the link authority yet. Authority moves in months, not days — which is exactly why you should start now and, in the meantime, target keywords your current authority can already win.

How to increase domain authority (what actually works)

1. Build link-worthy assets. Original data studies, genuinely useful free tools, and definitive guides earn links passively — far more durable than chasing links manually.
2. Digital PR & editorial mentions. A single link from a trusted, relevant publication outweighs dozens of low-quality directory links.
3. Fix what you're losing. Reclaim broken backlinks and unlinked brand mentions before chasing new ones.
4. Internal linking. Authority flows through your own links — point it at the pages you actually want to rank.
5. Avoid shortcuts. Bought links and PBNs are the fastest way to a manual penalty. Quality over quantity, always.

Domain Authority vs Domain Rating vs Open PageRank

All three measure the same idea — link authority — with different datasets and formulas, so their absolute numbers don't map 1:1. Always compare domains within the same tool. Your Moz DA of 40 is not directly comparable to a competitor's Ahrefs DR of 40, or to an Open PageRank score. Use one tool consistently to benchmark yourself against the specific competitors you're trying to outrank.

Authority is half the equation — the other half is the audit

Authority gets you into contention; on-page and technical SEO decide whether you convert that authority into actual rankings. Once you know a domain's authority, run the free 70-check SEO audit on it — technical, on-page, schema, Core Web Vitals, and AI-search visibility — and the AI Coach writes the exact fix (the meta tag, the schema JSON-LD, the title rewrite) for each issue it finds. Authority + a clean audit is what actually moves a page up the results.