| Primary role |
Single-page SEO, AEO, schema, content, trust, discovery, and conversion review |
Broad SEO and AI-search marketing platform |
Site auditing, search performance, backlink, and traffic tools for verified sites |
Desktop technical crawler and data-extraction tool |
Website audit, reporting, lead generation, and AI/GEO visibility checks |
Website reviews, monitoring, benchmarking, and agency reporting |
| Typical scan scope |
One submitted public page |
Website projects and broader domain-level workflows |
Verified websites and site-wide crawls |
Website crawling; free version limited to 500 URLs |
Public audits plus broader paid website and reporting workflows |
Website reviews and monitoring across multiple properties |
| Traditional SEO auditing |
Metadata, headings, canonical, indexability, links, alt text, schema, and basic technical signals |
Technical, on-page, performance, project, keyword, backlink, and competitor workflows |
170+ documented technical and on-page issue checks |
300+ documented SEO and UX issue checks with crawl-level detail |
Detailed SEO analysis across 100 documented website data points |
SEO health reviews, optimization guidance, monitoring, and benchmarking |
| AEO / AI-search emphasis |
Directly scores answer structure, FAQ coverage, audience clarity, trust, citation readiness, and summarization support |
Offers AI visibility reporting, prompt monitoring, and AI-ready auditing within its platform |
Offers separate AI visibility and brand-citation tools; Webmaster Tools remains primarily technical SEO |
Can support custom AI-assisted analysis through integrations and configuration; not its primary beginner workflow |
Promotes SEO, GEO, and AI visibility analysis in its audit workflow |
Primarily positioned around SEO reviews, optimization, monitoring, and agency workflows |
| How results are presented |
Overall score, category grades, prioritized fixes, issue explanations, passed checks, and optional PRO copy guidance |
Dashboards, projects, reports, recommendations, tracking, and competitive data |
Issue reports, affected URLs, charts, filters, and fix guidance |
Detailed crawl tabs, filters, exports, visualizations, and custom extraction |
Visual audit score, recommendations, reports, and agency-oriented outputs |
Website score, review findings, recommendations, monitoring, and reports |
| Setup requirement |
No account required; enter a public URL |
Account and project setup for full workflows |
Account plus website ownership verification |
Windows, macOS, or Linux desktop installation |
Public audit entry point; advanced workflows use an account or trial |
Public review and browser extension options; ongoing tools use an account |
| Privacy / storage model |
The public checker states that scanned URLs, fetched HTML, and report history are not saved |
Cloud platform with saved projects and monitoring |
Cloud platform connected to verified web properties |
Primarily runs crawl processing on the user’s computer |
Cloud-based auditing and reporting platform |
Cloud-based reviewing, monitoring, and reporting platform |
| Free entry point |
Three page scans per month; unlimited scans with SEO Support Pro |
Free checker and trial or subscription paths; current limits depend on product and plan |
Free Webmaster Tools access for verified sites, subject to documented limits |
Free version crawls up to 500 URLs |
Free audit entry point with trial and paid options |
Website review and free browser extension; broader features vary by plan |
| Best suited for |
Creators and hands-on site owners |
Marketing teams, agencies, and businesses needing an integrated platform |
Verified site owners and SEO professionals needing technical, backlink, and search data |
Technical SEOs, developers, auditors, and agencies needing crawl-level control |
Small businesses, marketers, consultants, and agencies wanting visual audits |
Businesses and agencies needing reviews, monitoring, benchmarking, and reporting |
| Important limitation |
Does not crawl an entire site or provide keyword, backlink, rank-tracking, or competitor databases |
Broader feature set requires more setup and paid plans |
Requires verification and is oriented toward properties the user controls |
Technical depth can be excessive for users seeking a quick plain-language answer |
Its broader agency and reporting capabilities are outside a simple one-page scan |
Not positioned primarily as a dedicated AEO or generative-search answerability scanner |
| Official information |
Open the NCM tool |
Semrush Site Audit |
Ahrefs Webmaster Tools |
Screaming Frog SEO Spider |
SEOptimer |
WooRank |