This tool is completely free to use

Website Audit

Get an instant, comprehensive analysis of your site's technical health, AI search readiness, and performance.
Powered by 70+ automated checks.

No signup required. Results in under 2 minutes.

Up to 3 audits per URL - per day · 100 pages crawled per audit.

Subdomains (e.g., blog.example.com) should be audited separately.

Want to see how you stack up against a competitor?
Run a side-by-side audit →

What We Analyze

search

Site Health Score

Technical SEO, crawlability, broken links, meta tags, headings, content quality, and internal linking structure.

smart_toy

AI Search Health Score

AI bot access, structured data, semantic HTML, llms.txt, content readiness for ChatGPT, Gemini, and Perplexity.

bolt

Performance Score

Core Web Vitals, page speed, render-blocking resources, image optimization, caching, and compression.

lock

Security & HTTPS

SSL certificate status, HTTPS implementation, mixed content detection, and security headers.

accessible

Accessibility

Color contrast, form labels, ARIA attributes, tap targets, and heading order for inclusive design.

link

Internal Linking

Orphan pages, click depth, anchor text quality, nofollow usage, and link graph analysis.

How We Compare

Every audit tool has a different focus.
Here's what you get with Stacq vs. the industry leaders.

Feature Stacq Semrush Ahrefs
Technical SEO check_circlecheck_circlecheck_circle
On-Page SEO check_circlecheck_circlecheck_circle
Core Web Vitals check_circlecheck_circlecheck_circle
Internal Linking check_circlecheck_circlecheck_circle
Security & HTTPS check_circlecheck_circlecheck_circle
AI Search Readiness check_circlecheck_circlecancel
Accessibility check_circlecancelcancel
JS Vulnerability Detection check_circlecancelcancel
Unused CSS/JS Analysis check_circlecancelcancel
Competitor AI Visibility cancelcheck_circlecancel
No Account Required check_circlecancelcancel
Price Free From ~$130/mo From ~$130/mo

How We Score

Our audit scores are based on 70+ automated checks weighted by severity and prevalence. Issues are grouped by type, and each is scored based on how critical it is and what percentage of your pages are affected. This means a widespread warning impacts your score more than an isolated one, but the same issue appearing on 50 pages won't unfairly penalize you 50 times.