Looking to gauge website strength without spending a dime? This listicle strips away guesswork and pinpoints the best domain authority checker free tools to power your SEO strategy—with a fun, conversational twist! You’ll get step-by-step guides, accuracy caveats, juicy tactics, and real-world tips for each platform. All entries include screenshots and direct links so you can jump straight into analysis.
Perfect for
- SEO pros and link builders
- Domain investors and flippers
- Affiliate marketers and niche site builders
- Startup founders and entrepreneurs seeking brandable domains
- Digital marketing agencies and consultants
Dive in and compare features, limits, refresh rates, and API access all in one place. We’ve stress-tested each site and highlight any rate limits or refresh quirks to keep your analysis utterly seamless and effortless.
By the end, you’ll know exactly which domain authority checker free tool fits your workflow. When you’re ready to snag prime domains, NameSnag’s AI platform uncovers Available domains you can register instantly (https://namesnag.com/domains?filter=available) and tracks Expiring domains in their grace period (https://namesnag.com/domains?filter=expiring)—so you grab the drop before anyone else. Both features also have time filters of Today (default), 3 Days, 7 Days, 14 Days, 30 Days, and All to narrow your hunt like a pro.
1. Ahrefs - Website Authority (Domain Rating) Checker
Ahrefs offers a free Domain Rating (DR) tool that helps SEO pros, affiliate marketers, and domain investors quickly measure link authority on a scale from 0 to 100. Unlike Moz DA, DR focuses exclusively on a massive, frequently updated backlink index. You can run lookups on the web or install the Ahrefs Chrome/Firefox toolbar for real-time DR and URL Rating as you browse. Run a free check at https://ahrefs.com/website-authority-checker.
Key Features
- Free DR lookup for domains or subdomains
- Browser extension displays DR and URL Rating on any page
- Detailed DR calculation breakdown with link-index metrics
Pros and Cons
| Pros | Cons |
|---|---|
| Largest link index, updates hourly | DR differs numerically from Moz DA |
| Convenient in-browser checks | Lookup volume limited on free plan |
Quick Tips
- Combine DR with Moz DA for a balanced scorecard.
- After finding high-DR sites, use NameSnag to explore Available domains (https://namesnag.com/domains?filter=available) with time filters (Today, 3, 7, 14, 30, All).
- Apply Today or 7-day filters—or go wild with 3, 14, or 30 days—to spot fresh drops and register immediately.
Access & Pricing
No sign-up needed for 10 DR checks daily. Free toolbar requires a browser extension install. Premium plans start at $99 per month for API access and unlimited lookups.
2. Semrush - Website Authority Checker (Authority Score)
Semrush’s free Website Authority Checker reports an Authority Score (0-100) that combines backlink and traffic signals for a quick web-based snapshot. It ties into Semrush’s broader SEO suite, letting you benchmark your site against competitors using backlink quality, estimated visits, and spam indicators.
Key Features
- Web-based Authority Score lookup with no installation required
- Combines backlink quality, estimated organic traffic, and spam signals
- Side-by-side competitor benchmarking for context
- Clear breakdown of factors used in the Authority Score calculation
Pros and Cons
| Pros | Cons |
|---|---|
| Integrated into a full-featured SEO and marketing suite | Proprietary metric differs from Moz DA |
| Fast snapshot for vetting domains and outreach lists | Deeper reports require sign-in or paid subscription |
Quick Tips
- Pair Semrush Authority Score with Moz DA for a balanced view of link equity.
- When you spot high-score expired or dropped domains, check Available domains on NameSnag (https://namesnag.com/domains?filter=available) using Today, 3, 7, 14, 30, or All filters.
- Use Expiring domains filters (Today, 3 Days, 7 Days, 14 Days, 30 Days, All) at NameSnag (https://namesnag.com/domains?filter=expiring) to grab soon-to-drop opportunities.
Access & Pricing
No account required for occasional checks. A free Semrush account unlocks unlimited daily lookups and limited competitor reports. Paid plans start at $119.95 per month for full site audit, API access, and comprehensive traffic data.
3. Majestic - Free Backlink Checker (Trust Flow/Citation Flow)
Majestic offers free lookups using its Trust Flow (quality) and Citation Flow (quantity) metrics plus counts for referring domains and total backlinks. This link-index-focused platform is a great complement to DA/DR tools, helping you cross-validate authority before pursuing outreach or domain investments.
Key Features
- Trust Flow quality score for link trustworthiness
- Citation Flow quantity score for link volume
- Free counts of referring domains and backlinks
- Browser plugin displays TF/CF and index stats on any page
Pros and Cons
| Pros | Cons |
|---|---|
| Deep, link-index-focused dataset | Uses proprietary metrics, no Moz DA |
| Fast, granular backlink and domain data | Free lookups lack historic depth |
Quick Tips
- Combine Trust Flow with NameSnag’s Available domains (https://namesnag.com/domains?filter=available) to hunt high-quality drops—use time filters (Today, 3, 7, 14, 30, All).
- Track upcoming Expiring domains (https://namesnag.com/domains?filter=expiring) using time filters (Today, 3 Days, 7 Days, 14 Days, 30 Days, All) for brandable finds.
- Learn more about referring domains on NameSnag to interpret Majestic metrics.
Access & Pricing
No sign-up is required for basic free checks at https://majestic.com/backlink-checker. Browser plugins unlock in-page TF/CF displays. Paid plans start at $49/month for historic indexes, advanced filters, and API access.
4. SEO Review Tools - Website Authority Checker
SEO Review Tools offers a robust free Website Authority Checker that provides both domain authority and page authority in one go. You can run single URL lookups or bulk checks for up to 10 URLs on the free tier. API access and spreadsheet templates make bulk workflows seamless. The simple interface helps link builders and investors get authority data quickly. Run a free check at https://www.seoreviewtools.com/website-authority-checker/.
Key Features
- Single URL authority lookup combining DA and PA in seconds
- Bulk DA/PA checks for up to 10 URLs free, plus CSV export templates
- Optional API endpoints and Google Sheets templates for scalable workflows
- In-depth guidance on authority metrics and actionable use cases
Pros and Cons
| Pros | Cons |
|---|---|
| Generous free tier with 10-URL bulk checks | Metrics may differ across multiple data sources |
| API and spreadsheet exports for scaling | Requires account for advanced bulk workflows |
Quick Tips
- Use bulk checks to shortlist domains before running Available domains searches on NameSnag (https://namesnag.com/domains?filter=available)—apply time filters (Today, 3, 7, 14, 30, All).
- Spot high DA expired sites and snag them via the Expiring domains filter on NameSnag (https://namesnag.com/domains?filter=expiring) with any of the time filters.
- Cross-validate SEO Review Tools DA with Moz DA or Ahrefs DR for a balanced quality check.
Access & Pricing
No signup required to run single or 10-URL bulk checks on the free tier. Register to unlock API keys and spreadsheet imports. Paid plans start at $29 per month for larger bulk limits, higher rate caps, and priority support.
5. Mangools - SiteProfiler
Mangools SiteProfiler gives you a fast, at-a-glance look at any domain’s authority and popularity by combining multiple signals from Moz, Majestic, social shares, and its own backlink database. You get a unified domain authority checker free interface that reveals link metrics, top content, and anchor distribution in seconds.
Key Features
- Authority snapshot for root domain or URL
- Backlink profile overview with top referring domains
- Top content highlights by social shares and inbound links
- Integrated metrics from Moz DA and Majestic TF/CF
- Shareable report links for easy collaboration
Pros and Cons
| Pros | Cons |
|---|---|
| Clean, intuitive UI for quick overviews | Limited free lookups per day |
| Multiple authority and popularity signals in one UI | Full backlink database access requires paid plan |
| Instant shareable reports for team workflows | Primary metric isn’t canonical Moz DA score |
Quick Tips
- Use SiteProfiler as your daily domain authority checker free tool before deep dives.
- After spotting high-authority sites, check Available domains via NameSnag (https://namesnag.com/domains?filter=available) with filters for Today, 3, 7, 14, 30 or All.
- Track Expiring domains with NameSnag (https://namesnag.com/domains?filter=expiring) and apply time filters (Today, 3, 7, 14, 30, All) for upcoming opportunities.
Access & Pricing
No credit card required for 3 free lookups daily. Premium plans start at $29.90 per month for unlimited SiteProfiler queries and full access to Mangools’ SEO toolkit.
6. SmallSEOTools - Domain Authority Checker
SmallSEOTools offers a free Domain Authority (DA) and Page Authority (PA) checker that helps SEO pros, link builders, and domain investors get Moz-style metrics instantly. Its minimal interface loads results in seconds but can feel cluttered by ads or CAPTCHA prompts. Run a free check at https://smallseotools.com/domain-authority-checker/.
Key Features
- Free DA/PA lookup for single or multiple URLs
- Displays MozRank, MozTrust, and related metrics
- Batch input lets you analyze lists without signing up
- Ad-supported flow with occasional CAPTCHA verification
Pros and Cons
| Pros | Cons |
|---|---|
| Fast, no-signup access for one-off or bulk checks | Indirect data sources may not match official Moz |
| Multi-URL input accelerates outreach research | Ads and captchas interrupt repeated lookups |
Quick Tips
- Combine DA readings with NameSnag’s Available domains to spot fresh registrations (https://namesnag.com/domains?filter=available)—don’t forget time filters!
- Cross-reference Expiring domains for soon-to-drop URLs (https://namesnag.com/domains?filter=expiring) using Today, 3, 7, 14, 30, or All.
- Batch-upload your prospect list to compare DA trends before outreach.
Access & Pricing
No account or payment required for unlimited free checks. Supported by on-page ads and optional premium upsells for API access and higher query limits.
7. WebsiteSEOChecker - Domain Authority Checker + Bulk/API
WebsiteSEOChecker offers a powerful domain authority (DA) and page authority (PA) checker with robust bulk import/export and a documented API. It’s built for SEO pros, link builders, and digital agencies needing to scale audits and outreach lists. The interface is clean and responsive, making batch uploads painless and reporting crystal clear.
Key Features
- Bulk checks up to 1,000 URLs per upload
- Exportable CSV/Excel reports including DA, PA, Spam Score
- RESTful API for integrating authority metrics into workflows
- Tiered plans with one-off URL bundles and monthly subscriptions
Pros and Cons
| Pros | Cons |
|---|---|
| Scales seamlessly for large audit and outreach | Metrics derived from third-party sources, can vary slightly |
| Transparent pricing with clear URL allowances | High-volume capabilities require paid packages |
Quick Tips
- Register free to unlock an API key and automate daily checks.
- Combine DA data with NameSnag’s Available domains tool (https://namesnag.com/domains?filter=available) and filter by Today, 3, 7, 14, 30, or All.
- Use the Expiring domains filter (https://namesnag.com/domains?filter=expiring) with the full range of time filters for high-value targets.
Access & Pricing
No signup needed for single-domain lookups and up to 50 URLs per batch free. API access requires a free account. One-off bundles start at $10 for 500 URLs. Subscriptions begin at $19/month for 5,000 URL credits. Visit https://websiteseochecker.com/domain-authority-checker/ to get started.
8. Ubersuggest (Neil Patel)
Ubersuggest by Neil Patel offers a beginner-friendly domain overview and acts as a free domain authority checker with an authority-like metric, alongside backlinks, keywords, and traffic estimates. It surfaces top organic keywords and helps identify competitive gaps for link builders and affiliate marketers. The free tier provides daily report limits, while paid plans unlock unlimited lookups and historical data for deeper insights. Get started at https://neilpatel.com/ubersuggest.
Key Features
- Domain overview with authority-like metric, backlinks, keywords, and traffic data
- Free tier capped at a few daily searches and reports
- 7-day trial on monthly plans plus lifetime plan options
- Educational onboarding and in-app suggestions
Pros and Cons
| Pros | Cons |
|---|---|
| Intuitive interface with step-by-step tips | Free searches limited to small daily quota |
| Combines authority data with organic traffic info | Proprietary score may not match Moz DA values |
Quick Tips
- Cross-reference Ubersuggest scores with Moz DA for a balanced view.
- Hunt freshly dropped names via NameSnag Available domains (https://namesnag.com/domains?filter=available) and dial in with time filters (Today, 3, 7, 14, 30, All).
- Track expiring domains using NameSnag Expiring domains (https://namesnag.com/domains?filter=expiring) and its handy time filters.
Access & Pricing
No credit card needed for free daily lookups. Sign-up unlocks full UI. Paid plans start at $29 per month with a 7-day trial and include unlimited reports plus API access.
9. Ranktracker - Domain Authority Checker
Ranktracker provides a domain authority checker free tool as part of its SEO suite. You can run single-URL DA checks online alongside Domain Rating (DR) and Authority Score (AS) metrics while exploring backlink and SERP monitoring. A simple interface makes one-off checks quick, and registering for a free account lifts daily limits—ideal for link builders, affiliate marketers, or entrepreneurs vetting brandable domains. Run your free check at https://www.ranktracker.com/domain-authority-checker/.
Key Features
- Free single-URL DA checks in a lightweight web interface
- Side-by-side DA, DR, and AS metrics for holistic authority views
- Built-in backlink analysis and SERP position tracking tools
- Optional free account to unlock higher query allowances
Pros and Cons
| Pros | Cons |
|---|---|
| Multiple authority metrics in one ecosystem | DA values sourced indirectly, can differ vs Moz |
| Quick checks without installing extensions | Free tier limits daily lookups |
Quick Tips
- Cross-validate Ranktracker DA with Moz DA for balanced insights.
- Scout freshly dropped domains via Available domains: https://namesnag.com/domains?filter=available (use Today, 3, 7, 14, 30, All filters).
- Monitor soon-to-drop assets with Expiring domains: https://namesnag.com/domains?filter=expiring (all time filters apply).
- Use time filters (Today, 3 Days, 7 Days, 14 Days, 30 Days, All) to catch high-value opportunities.
Access & Pricing
No sign-up required for 15 free DA checks per day. Free accounts expand to 50 daily queries. Paid plans start at $29/month for API access, unlimited lookups, and advanced reporting.
10. The HOTH - Free Bulk Moz Domain Authority Checker
The HOTH free bulk Moz Domain Authority and Page Authority checker is ideal for outreach pros, link builders, and affiliate marketers who need to vet dozens of URLs in seconds. No sign-up required—just paste a list of up to 50 domains and get Moz DA/PA scores instantly, ready for sorting or export. Learn more about domain authority vs page authority on NameSnag.
Key Features
- Bulk DA and PA lookups for multiple URLs
- Simple paste-and-click interface with instant CSV export
- Integrated access to The HOTH’s SEO guides and educational blog
Pros and Cons
| Pros | Cons |
|---|---|
| Fast list validation without signup | No backlink profile breakdown |
| Zero learning curve for new users | Free batch size capped at 50 URLs |
Quick Tips
- Filter by DA threshold before email outreach campaigns.
- Scout newly dropped domains with NameSnag’s Available domains tool (https://namesnag.com/domains?filter=available)—don’t forget time filters.
- Monitor near-expiring assets using NameSnag’s Expiring domains filter (https://namesnag.com/domains?filter=expiring) with Today, 3, 7, 14, 30, All.
Access & Pricing
Free to use for up to 50 URL checks per session—no login needed. Upgrade to The HOTH Pro for larger batches, deeper metrics, and API access.
11. Serpstat - Domain Rank (Authority) Checker
Serpstat’s Domain Rank is a domain authority checker free tool that lets SEO pros run up to 10 checks per day without signup. Its intuitive interface and transparent limit display make it ideal for quick link analysis. Under a 7-day trial, users unlock bulk checking, API access, and 70+ advanced SEO tools.
The clean dashboard breaks down referring domains, backlink volume, and top keywords. A responsive customer service chat helps troubleshoot API integrations and data exports.
Key Features
- 10 free daily Domain Rank checks on the site
- Bulk DA/DR checker and API during trial and paid plans
- 7-day trial for full access to Serpstat’s 70+ SEO tools
Pros and Cons
| Pros | Cons |
|---|---|
| All-in-one SEO platform supports bulk audits | Uses proprietary Domain Rank metric, not Moz DA |
| Clear free-use limits and easy-to-read reports | 7-day trial may require credit card to start |
Quick Tips
- Run your domain lists in bulk under the trial period to map large backlink profiles.
- After spotting high-authority sites, use NameSnag to find Available domains: https://namesnag.com/domains?filter=available (use time filters!).
- Track Expiring domains with NameSnag’s filters (Today, 3, 7, 14, 30, All): https://namesnag.com/domains?filter=expiring
Access & Pricing
No signup required for 10 daily checks. Full bulk workflows and API need trial signup with credit card. Paid plans start at $69 per month. Visit https://serpstat.com/page/domain-authority-checker/ to get started.
12. Moz - Link Explorer / Domain Analysis (Domain Authority)
Moz is the canonical source for Domain Authority (DA) via its Link Explorer and Domain Analysis features. You can obtain official DA and Page Authority scores, inspect backlink profiles and top pages, and surface metrics in SERPs with the MozBar extension. Free checks are limited and require a Moz account, while Moz Pro unlocks deeper link data. The interface is intuitive and backed by robust support docs and community forums.
Learn more about Moz - Link Explorer / Domain Analysis (Domain Authority) on NameSnag: Learn more about Moz - Link Explorer / Domain Analysis (Domain Authority) on NameSnag
Key Features
- Official DA and PA scores on a 0-100 scale
- Link Explorer with backlinks, top pages, and anchor text data
- MozBar browser extension adds metrics directly in search results
Pros and Cons
| Pros | Cons |
|---|---|
| Industry-standard DA metric | Only 10 free lookups per month |
| Deep backlink data for Moz Pro users | Requires account, paid plans steep |
Quick Tips
- Use MozBar when vetting domains on NameSnag.
- Combine with Available domains: https://namesnag.com/domains?filter=available (pick your time slice).
- Track Expiring domains: https://namesnag.com/domains?filter=expiring and filter by Today, 3 Days, 7 Days, 14 Days, 30 Days, or All.
Access & Pricing
No sign-up needed for 10 free lookups monthly with a Moz account. Moz Pro starts at $99/month and includes unlimited queries, API access, and advanced link analytics.
Top 12 Free Domain Authority Checkers Compared
| Tool | Core features ✨ | Key strength 🏆 | Target audience 👥 | Quality ★ | Price/value 💰 |
|---|---|---|---|---|---|
| Ahrefs — Website Authority (Domain Rating) Checker | Free DR lookups, browser extension, link-index details ✨ | Very large, frequently updated link index 🏆 | SEOs, link analysts 👥 | ★★★★★ | 💰 Free snapshot; paid for full data |
| Semrush — Website Authority Checker (Authority Score) | Web-based Authority Score, competitor benchmarks, traffic signals ✨ | Integrated SEO & competitive data suite 🏆 | Marketers, agencies, competitive researchers 👥 | ★★★★☆ | 💰 Free checks; paid for deep reports |
| Majestic — Free Backlink Checker (Trust Flow/Citation Flow) | Trust Flow & Citation Flow, backlink/referring domain counts, plugins ✨ | Long-standing, link-quality focused index 🏆 | Link researchers, forensic SEO 👥 | ★★★★☆ | 💰 Free limited; paid plans for full index |
| SEO Review Tools — Website Authority Checker | DA/PA single & bulk checks, API/spreadsheet templates ✨ | Generous free tier & bulk/export options 🏆 | Consultants, small teams doing bulk checks 👥 | ★★★★ | 💰 Free tier; paid for higher volume/API |
| Mangools — SiteProfiler | Authority snapshot, backlink overview, top content highlights ✨ | Clean, user-friendly UI for quick overviews 🏆 | Beginners & time-pressed SEOs 👥 | ★★★★ | 💰 Trial available; paid plans thereafter |
| SmallSEOTools — Domain Authority Checker | DA/PA, Moz-style metrics, multi-URL input, no signup ✨ | Instant, no-signup access for quick checks 🏆 | Casual users, one-off checks 👥 | ★★★ | 💰 Free (ad-supported) |
| WebsiteSEOChecker — Domain Authority Checker + Bulk/API | Bulk up to 1,000 URLs, exportable results, documented API ✨ | Scales well for audits & outreach with clear limits 🏆 | Enterprises, outreach teams, auditors 👥 | ★★★★ | 💰 Tiered paid packages; paid bulk |
| Ubersuggest (Neil Patel) | Domain overview with authority-like metric, backlinks & traffic ✨ | Very approachable UI with educational onboarding 🏆 | Beginners, small businesses, content creators 👥 | ★★★ | 💰 Freemium (daily limits); paid plans/trials |
| Ranktracker — Domain Authority Checker | Single-URL DA checks, backlink & SERP monitoring tools ✨ | Multiple authority views in one ecosystem 🏆 | Freelancers & small SEO teams 👥 | ★★★ | 💰 Free account option; paid for full features |
| The HOTH — Free Bulk Moz Domain Authority Checker | Bulk DA/PA lookups, simple output for sorting/filtering ✨ | Fast bulk checks for prospecting/outreach 🏆 | Outreach teams, sales prospectors 👥 | ★★★ | 💰 Free bulk tool (limited exports) |
| Serpstat — Domain Rank (Authority) Checker | Domain Rank with daily free checks, bulk & API, 7-day trial ✨ | All-in-one SEO platform with transparent limits 🏆 | Agencies, auditors seeking trial workflows 👥 | ★★★★ | 💰 Free daily limits; paid plans for bulk/API |
| Moz — Link Explorer / Domain Analysis (Domain Authority) | Official DA/PA, Link Explorer, MozBar browser metrics ✨ | Canonical source for DA; deep link data for paid users 🏆 | Professionals needing canonical DA & deep analysis 👥 | ★★★★★ | 💰 Limited free use; Moz Pro for full access |
Next Steps: Supercharge Your Domain Strategy
Now that you have a clear view of the 12 best domain authority checker free tools, it’s time to integrate these insights into a streamlined SEO workflow. You’ve learned how each tool estimates authority, its accuracy caveats, bulk limits, API access, and refresh rates. Let’s turn theory into action.
Master Your Free Domain Authority Toolkit
Pick the right combo of tools for real-world tasks:
- Single-Lookup Champions: Ahrefs, Semrush, Moz Link Explorer
- Bulk/API Workhorses: WebsiteSEOChecker, The HOTH, Ranktracker
- Niche & Outreach Helpers: Majestic Trust Flow, Ubersuggest, Serpstat
“By combining complementary tools you avoid blind spots, boost accuracy, and scale link building efficiently.”
Tailor Your Selection To Your Workflow
Consider these factors when you pick your preferred domain authority checker free solution:
- Calculation Method – Trust Flow vs Domain Rating vs Authority Score
- Query Limits – Daily lookup caps, bulk file size, and API quotas
- Data Freshness – Real-time updates, weekly refresh, or monthly snapshots
- User Interface – Dashboard clarity, export formats, and integration options
Scout Premium Domain Opportunities
For advanced domain scouting, extend beyond pure analysis and start hunting high-DA domains:
- Available Domains: Find just-dropped, registerable names immediately
- Expiring Domains: Track domains in grace periods that will drop soon
- Time Filters: Today, 3 Days, 7 Days, 14 Days, 30 Days, or All intervals
Use NameSnag to set up Early Access Alerts and Watchers so you never miss a coveted domain.
Implement and Iterate
- Combine 2–3 free checkers for cross-validation and spot discrepancies.
- Schedule weekly bulk exports to track authority trends and link velocity.
- Integrate authority metrics into your SEO reporting dashboards and outreach sequences.
- Adjust your toolset as your project scales—upgrade to paid tiers only when you outgrow free limits.
Final Thought
By weaving “domain authority checker free” tools into a coherent strategy, you’ll unlock deeper link insights, make smarter buying decisions, and optimize your site’s authority over time. Stay curious, keep testing new combos, and let data guide your next big SEO move.
Ready to level up your domain authority workflow with real-time domain scouting?
NameSnag helps you discover and secure high-DA domains as they become available or near expiration.
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