AudZap was built on one belief: powerful SEO tools shouldn't cost hundreds of dollars per month. Everyone deserves to know why their website isn't ranking.
AudZap started from a simple frustration: every time someone needed to check why their website wasn't ranking in Google, they faced a paywall. The best SEO tools charge $99–$499 per month — completely out of reach for small business owners, bloggers, freelancers, and students.
We built AudZap to change that. By running entirely in your browser (using JavaScript to fetch and analyze pages), we can offer the same depth of analysis as premium tools — completely free, with no signup, no credit card, and no daily limits.
Today, AudZap checks over 137 individual SEO factors spanning seven critical categories: On-Page SEO, Technical SEO, E-E-A-T signals, Core Web Vitals readiness, Content Quality, Link structure, and Security & Accessibility. All in under 30 seconds.
Your audit data never leaves your browser. No servers, no accounts, no data collection. Everything runs locally.
Get a full professional SEO audit in 15–30 seconds. No waiting for reports to be emailed to you.
Connect your own Gemini or GPT-4o API key for deep AI analysis. Your key stays local — always.
Full English and Thai support. Switch languages instantly without re-running your audit.
Track your SEO improvements over time. AudZap saves your last 10 audits locally in your browser.
Our pixel cat Zappi reacts to your audit results and keeps the experience fun. Unlock skins and items!
Title tags, meta descriptions, heading structure (H1-H6), keyword density, keyword position, image alt text, URL structure, canonical tags, hreflang, viewport, favicon, and more. Every element that Google reads directly from your page content.
HTTPS, noindex detection, mixed content errors, Schema markup (structured data), Open Graph tags, Twitter Card meta, page speed signals, and security header analysis. The plumbing that lets Google find and understand your site.
Google's Experience, Expertise, Authoritativeness, and Trustworthiness framework. We check for author information, about pages, contact details, privacy policy, external citations, and other trust signals that affect ranking in YMYL (Your Money Your Life) categories.
LCP (Largest Contentful Paint), CLS (Cumulative Layout Shift), and INP (Interaction to Next Paint) indicators. Image dimensions, lazy loading, render-blocking resources, and modern image format usage.
Word count analysis, H2 content depth, paragraph-after-heading structure, CTA words in meta descriptions, power words in titles, keyword frequency, and content freshness signals.
Internal link count, dofollow vs. nofollow balance, outbound link authority, broken link indicators, and link text optimization.
HTTPS implementation, X-Frame-Options, Content-Security-Policy, X-Content-Type headers, language attribute, ARIA landmark usage, and accessibility best practices.
AudZap is supported by Google AdSense display advertising. When you visit our site, you may see relevant ads displayed by Google. These ads fund our infrastructure (CDN, domain, development time) so we can keep the tool free for everyone.
We've designed AudZap to be ad-light and non-intrusive. Ads don't interrupt audits or obscure results. If you find AudZap useful, simply leaving ads enabled is the best way to support continued development.
Ready to audit your website? No registration needed — just enter your URL and get instant results.
137+ checks. 7 categories. Instant results. Free forever. No signup.
Start Free Audit at AudZap →Want to learn SEO? Visit our blog for in-depth guides and tutorials: