About Site Auditor
We're building the most comprehensive AI-powered website auditing platform, helping teams ship faster, rank higher, and stay secure. From startups to enterprises, we give every team the power of a dedicated web quality engineering department.
50,000+
Audits completed
2M+
Pages analysed
3,200+
Active users
99.9%
Uptime SLA
Making web quality accessible to every team
The web should be fast, accessible, and secure for everyone. Yet most teams lack the tools or expertise to audit their sites comprehensively. Manual audits take days. Point solutions only cover one dimension. And generic advice doesn't help developers fix real issues.
We're changing that. Site Auditor combines deep crawling, real browser rendering, Lighthouse metrics, and AI-powered analysis into a single platform. We don't just tell you what's wrong: we tell you exactly how to fix it, referencing your actual pages, your actual code, and your actual configuration.
Performance
LCP, INP, CLS
Security
Headers, SSL, OWASP
SEO
Meta, links, structure
Accessibility
WCAG 2.1 AA
Built by developers, for developers
The Frustration
We were tired of running five different tools to check SEO, performance, security, accessibility, and UX, then spending hours cross-referencing results and translating them into actionable tickets. Every tool gave generic advice that didn't reference our actual codebase.
The Idea
What if one platform could crawl every page, run real Lighthouse audits, check security headers, validate WCAG compliance, and then use AI to generate specific fix recommendations? Not "add alt text to images" - but "add alt='Team photo' to hero-team.jpg on /about."
The Platform
Today, Site Auditor is used by thousands of developers, agencies, and businesses worldwide. We crawl millions of pages monthly, generate AI-powered executive summaries, and even automate client outreach through our PlusVibe integration. And we're just getting started.
What drives every decision we make
Actionable over Abstract
No vague advice. Every recommendation references your actual code with copy-pastable fixes. We believe insights are only valuable when they lead to action.
Speed as a Feature
We obsess over milliseconds in our product and in the websites we help optimise. Fast audits, fast dashboards, fast websites.
Security by Default
Every audit includes security header analysis, SSL validation, and vulnerability scanning. We don't treat security as an add-on.
Inclusive by Design
Accessibility isn't a checkbox; it's a core dimension of quality. We check 50+ WCAG 2.1 AA criteria on every page we analyse.
Developer Experience
Built by developers, for developers. API-first architecture, CLI support, Chrome extension, webhooks, and deep CI/CD integration.
Transparency & Trust
Open methodology, clear scoring, no hidden metrics. We show you exactly how we calculate every score and why each recommendation matters.
Built with modern, battle-tested tools
We chose every piece of our stack for reliability, performance, and developer experience.
Next.js & React
Server-side rendering, edge caching, and the latest React features for a blazing-fast dashboard experience.
PostgreSQL & Drizzle
Type-safe database queries with Drizzle ORM on PostgreSQL for reliable, scalable data storage.
AI with GPT-4 & Claude
Vercel AI SDK powers our analysis pipeline: GPT-4.1-mini for bulk analysis, Claude for executive summaries.
Playwright Browser Engine
Real browser rendering for accurate performance metrics, JavaScript-heavy sites, and visual analysis.
BullMQ & Redis
Distributed job queue for processing thousands of concurrent audits with automatic retries and prioritization.
Docker & CI/CD
Multi-stage Docker builds, GitHub Actions pipelines, and automated deployments for every commit.
What sets us apart
All-in-One Platform
SEO, performance, security, accessibility, and UX, all analysed in a single crawl. No need to juggle five different tools or cross-reference results.
AI-Powered Fix Recommendations
GPT-4 analyses your specific audit findings and generates targeted fix recommendations referencing your actual pages, code, and configuration. Not generic tips - real solutions.
Multi-Tenant Workspaces
Agencies and teams can manage multiple clients from one dashboard. Each workspace has isolated data, its own billing, and role-based access control (Owner, Admin, Editor, Viewer).
Outreach Pipeline (PlusVibe)
Turn audit findings into client conversations. AI generates personalized cold emails highlighting a prospect's specific issues, syncs leads to PlusVibe, and automates follow-up campaigns with A/B testing.
API-First Architecture
Every feature is available via our REST API. Integrate audits into your CI/CD pipeline, trigger scans from Slack, or build custom dashboards. Full webhook support for real-time notifications.
Ready to improve your web quality?
Start auditing your websites today. Free plan includes 5 audits per month with full SEO, performance, security, and accessibility analysis.