10 Best Domain Authority Checker Tools for Founders [2026 Updated]

1. Moz Domain Authority Checker (Link Explorer)

• Type: Free
• URL: https://moz.com/domain-analysis
• Overview: Moz created the Domain Authority metric and offers a free checker that scores any domain from 1 to 100. It also shows linking domains, ranking keywords, and spam score, with limited free daily lookups.

2. Ahrefs Website Authority Checker

• Type: Free
• URL: https://ahrefs.com/website-authority-checker
• Overview: Ahrefs offers a free tool that displays a site's Domain Rating (DR) and URL Rating (UR). It also shows backlink counts and top pages, drawing on one of the largest live link indexes.

3. Semrush Authority Score Checker

• Type: Paid
• URL: https://www.semrush.com/analytics/overview/
• Overview: Semrush calculates an Authority Score that combines backlink quality, organic traffic, and spam signals. The Domain Overview report also provides competitor comparisons and keyword data, with limited free use and full access on paid plans.

4. Majestic Site Explorer

• Type: Paid
• URL: https://majestic.com
• Overview: Majestic evaluates domains with its proprietary Trust Flow and Citation Flow metrics. It maintains a large historical link index and provides detailed backlink analysis, with basic data free for verified domain owners.

5. Ubersuggest

• Type: Paid
• URL: https://neilpatel.com/ubersuggest/
• Overview: Ubersuggest by Neil Patel reports Domain Score, backlinks, and organic traffic estimates for any domain. It suits small businesses and offers a limited free tier plus affordable paid plans.

6. SE Ranking Domain Authority Checker

• Type: Paid
• URL: https://seranking.com
• Overview: SE Ranking provides Domain Trust and Page Trust metrics within its backlink checker and competitive research modules. It combines authority analysis with rank tracking and site audits for agencies and in-house teams.

7. Domain Authority Checker by Ahrefs Alternative: Link-Assistant SEO SpyGlass

• Type: Paid
• URL: https://www.link-assistant.com/seo-spyglass/
• Overview: SEO SpyGlass is a desktop backlink analysis tool that calculates Domain InLink Rank and other authority metrics. It also audits link quality and flags risky links, with a free version offering limited features.

8. Serpstat

• Type: Paid
• URL: https://serpstat.com
• Overview: Serpstat reports Serpstat Domain Rank (SDR) and provides backlink analysis, keyword research, and competitor insights. It offers an all-in-one SEO platform at mid-range pricing, aimed at small and mid-sized teams.

9. Detailed SEO Extension

• Type: Free
• URL: https://detailed.com/extension/
• Overview: Detailed is a free browser extension that shows SEO metrics, including domain-level data, on any page you visit. It helps marketers quickly assess a site's strength without leaving the browser.

10. Mangools SERPWatcher and LinkMiner

• Type: Paid
• URL: https://mangools.com
• Overview: Mangools offers the Citation Flow-based and Trust Flow-based metrics plus its own Link Profile Strength through SiteProfiler and LinkMiner. It provides an easy-to-use interface with affordable plans suitable for freelancers and small businesses.