Free Site Audit Comparison.
See how your site stacks up against a competitor. We run a full audit on both sites and crown a winner based on technical health, AI search readiness, and performance.
What Does This Audit Check?
Our comparison tool runs two complete audits side by side and scores each site across six categories out of 100.
- Site Health: Technical SEO, crawlability, indexing, on-page structure, and web best practices.
- AI Search Health: Structured data, LLMs.txt, ChatGPT/Copilot readiness, and content accessibility for AI crawlers.
- Performance: Core Web Vitals, page speed, and Lighthouse performance scoring.
- Accessibility: Inclusive design, ARIA compliance, and usability for all visitors.
- Best Practices & Security: Modern web standards, HTTPS enforcement, and security headers.
- SEO:
Search engine optimization fundamentals from Google's Lighthouse.
No signup required. Results in under 2 minutes.
How It Works
- Enter both URLs: Drop in your site and your competitor's site.
- We audit both simultaneously: Our engine crawls up to 100 pages on each site, running 70+ automated checks.
- Get your Matchup Report: See side-by-side scores, a category-by-category breakdown, and a clear winner.
Who Is This For?
- Business owners who want to see how they compare to local competitors.
- Marketing teams looking to benchmark against rivals in their space.
- Agencies evaluating a prospect's site against their current provider.
- Anyone curious whether their site is actually keeping up with others.
Why Stacq?
We help migrate existing sites onto enterprise-grade infrastructure with built-in monitoring, consolidated analytics, and AI search readiness, all without impacting your existing SEO or content. No setup or migration fees
(depending on the plan selected).
What We Analyze
Site Health Score
Technical SEO, crawlability, broken links, meta tags, headings, content quality, and internal linking structure.
AI Search Health Score
AI bot access, structured data, semantic HTML, llms.txt, content readiness for ChatGPT, Gemini, and Perplexity.
Performance Score
Core Web Vitals, page speed, render-blocking resources, image optimization, caching, and compression.
Security & HTTPS
SSL certificate status, HTTPS implementation, mixed content detection, and security headers.
Accessibility
Color contrast, form labels, ARIA attributes, tap targets, and heading order for inclusive design.
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_circle | check_circle | check_circle |
| On-Page SEO | check_circle | check_circle | check_circle |
| Core Web Vitals | check_circle | check_circle | check_circle |
| Internal Linking | check_circle | check_circle | check_circle |
| Security & HTTPS | check_circle | check_circle | check_circle |
| AI Search Readiness | check_circle | check_circle | cancel |
| Accessibility | check_circle | cancel | cancel |
| JS Vulnerability Detection | check_circle | cancel | cancel |
| Unused CSS/JS Analysis | check_circle | cancel | cancel |
| Competitor AI Visibility | cancel | check_circle | cancel |
| No Account Required | check_circle | cancel | cancel |
| 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.